chore: remove github actions

chore: fix renovate preset location
chore: fix repo urls in pom.xml
2025-06-27 21:31:22 +02:00 · 2025-06-27 11:39:46 +02:00 · 2025-06-26 21:52:37 +02:00 · 2025-06-26 03:03:26 +00:00 · 2025-06-25 20:40:15 +02:00 · 2025-06-25 19:50:16 +02:00
44 changed files with 2268 additions and 738 deletions
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@ -1,4 +0,0 @@
-# https://docs.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
-* @sschnabe @rpahli @fabian-schlegel @jschwarze @wistefan @monotek
-.github/workflows/* @kokuwaio-bot
-pom.xml @kokuwaio-bot
--- a/.github/README.md
+++ b/.github/README.md
@ -0,0 +1,14 @@
+# Keycloak Metrics
+
+Provides metrics for Keycloak user/admin events and user/client/session count. Tested on Keycloak [22-26](.woodpecker/verify.yaml#L7-L11).
+
+[![maven](https://img.shields.io/maven-central/v/io.kokuwa.keycloak/keycloak-event-metrics.svg?label=maven)](https://central.sonatype.com/artifact/io.kokuwa.keycloak/keycloak-event-metrics)
+[![pulls](https://img.shields.io/docker/pulls/kokuwaio/keycloak-event-metrics)](https://hub.docker.com/r/kokuwaio/keycloak-event-metrics)
+[![size](https://img.shields.io/docker/image-size/kokuwaio/keycloak-event-metrics)](https://hub.docker.com/r/kokuwaio/keycloak-event-metrics)
+[![dockerfile](https://img.shields.io/badge/source-Dockerfile%20-blue)](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/src/branch/main/Dockerfile)
+[![license](https://img.shields.io/badge/license-EUPL%201.2-blue)](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/src/branch/main/LICENSE)
+[![issues](https://img.shields.io/gitea/issues/open/kokuwaio/keycloak-event-metrics?gitea_url=https%3A%2F%2Fgit.kokuwa.io)](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/issues)
+[![prs](https://img.shields.io/gitea/pull-requests/open/kokuwaio/keycloak-event-metrics?gitea_url=https%3A%2F%2Fgit.kokuwa.io)](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/pulls)
+[![build](https://ci.kokuwa.io/api/badges/kokuwaio/keycloak-event-metrics/status.svg)](https://ci.kokuwa.io/repos/kokuwaio/keycloak-event-metrics/)
+
+For more documention see: [git.kokuwa.io/kokuwaio/keycloak-event-metrics](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics)
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@ -1,22 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: maven
-    directory: /
-    open-pull-requests-limit: 20
-    schedule:
-      interval: monthly
-      day: monday
-      # github parses time without quotes to int
-      # yamllint disable-line rule:quoted-strings
-      time: "09:00"
-      timezone: Europe/Berlin
-  - package-ecosystem: github-actions
-    directory: /
-    open-pull-requests-limit: 10
-    schedule:
-      interval: monthly
-      day: monday
-      # github parses time without quotes to int
-      # yamllint disable-line rule:quoted-strings
-      time: "09:00"
-      timezone: Europe/Berlin
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@ -1,86 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: [main]
-  pull_request: {}
-
-jobs:
-
-  yaml:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: ibiqlik/action-yamllint@v3
-        with:
-          format: colored
-          strict: true
-
-  markdown:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: avto-dev/markdown-lint@v1
-        with:
-          args: /github/workspace
-
-  javadoc:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 17
-          cache: maven
-      - run: mvn -B -ntp javadoc:javadoc-no-fork -Ddoclint=all
-
-  checkstyle:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 17
-          cache: maven
-      - run: mvn -B -ntp checkstyle:check
-
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 17
-          cache: maven
-          server-id: sonatype-nexus
-          server-username: SERVER_USERNAME
-          server-password: SERVER_PASSWORD
-      - run: mvn -B -ntp verify -Dcheckstyle.skip -Dmaven.test.redirectTestOutputToFile=false
-        if: ${{ github.ref != 'refs/heads/main' }}
-      - run: mvn -B -ntp deploy -Dcheckstyle.skip -Dmaven.test.redirectTestOutputToFile=false
-        if: ${{ github.ref == 'refs/heads/main' }}
-        env:
-          SERVER_USERNAME: ${{ secrets.SONATYPE_NEXUS_USERNAME }}
-          SERVER_PASSWORD: ${{ secrets.SONATYPE_NEXUS_PASSWORD }}
-
-  versions:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        version:
-          - 21.0.0
-          - 21.0.1
-          - 21.0.2
-          - 21.1.0
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 17
-          cache: maven
-      - run: mvn -B -ntp verify -Dcheckstyle.skip -Dmaven.test.redirectTestOutputToFile=false -Dversion.org.keycloak=${{ matrix.version }}
--- a/.github/workflows/dependabot.yaml
+++ b/.github/workflows/dependabot.yaml
@ -1,17 +0,0 @@
-name: Dependabot
-
-on: pull_request_target
-
-jobs:
-  auto-merge:
-    runs-on: ubuntu-latest
-    if: ${{ github.actor == 'dependabot[bot]' }}
-    steps:
-      - run: gh pr review --approve "$PR_URL"
-        env:
-          PR_URL: ${{ github.event.pull_request.html_url }}
-          GITHUB_TOKEN: ${{ secrets.GIT_ACTION_TOKEN }}
-      - run: gh pr merge --auto --squash "$PR_URL"
-        env:
-          PR_URL: ${{ github.event.pull_request.html_url }}
-          GITHUB_TOKEN: ${{ secrets.GIT_ACTION_TOKEN }}
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@ -1,33 +0,0 @@
-name: Release
-
-on: workflow_dispatch
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          token: ${{ secrets.GIT_ACTION_TOKEN }}
-      - uses: crazy-max/ghaction-import-gpg@v5
-        with:
-          gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
-          passphrase: ${{ secrets.GPG_PASSPHRASE }}
-          git_user_signingkey: true
-          git_commit_gpgsign: true
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 17
-          cache: maven
-          server-id: sonatype-nexus
-          server-username: SERVER_USERNAME
-          server-password: SERVER_PASSWORD
-          gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
-          gpg-passphrase: GPG_PASSPHRASE
-      - run: mvn -B -ntp release:prepare
-      - run: mvn -B -ntp release:perform
-        env:
-          SERVER_USERNAME: ${{ secrets.SONATYPE_NEXUS_USERNAME }}
-          SERVER_PASSWORD: ${{ secrets.SONATYPE_NEXUS_PASSWORD }}
-          GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,5 @@
+# do not include developer stuff here, use `git config --global core.excludesFile ~/.gitignore` for your setup
+
+target
+pom.xml.releaseBackup
+release.properties
--- a/.justfile
+++ b/.justfile
@ -0,0 +1,21 @@
+# https://just.systems/man/en/
+
+[private]
+@default:
+	just --list --unsorted
+
+# Run linter.
+@lint:
+	docker run --rm --read-only --volume=$(pwd):$(pwd):ro --workdir=$(pwd) kokuwaio/hadolint
+	docker run --rm --read-only --volume=$(pwd):$(pwd):ro --workdir=$(pwd) kokuwaio/yamllint
+	docker run --rm --read-only --volume=$(pwd):$(pwd):rw --workdir=$(pwd) kokuwaio/markdownlint --fix
+	docker run --rm --read-only --volume=$(pwd):$(pwd):ro --workdir=$(pwd) kokuwaio/renovate
+	docker run --rm --read-only --volume=$(pwd):$(pwd):ro --workdir=$(pwd) woodpeckerci/woodpecker-cli lint
+
+# Build image with local docker daemon.
+@build:
+	docker build . --tag=kokuwaio/keycloak-event-metrics:dev
+
+# Inspect image layers with `dive`.
+@dive: build
+	dive build .
--- a/.woodpecker/deploy.yaml
+++ b/.woodpecker/deploy.yaml
@ -0,0 +1,61 @@
+when:
+  instance: ci.kokuwa.io
+  repo: kokuwaio/keycloak-event-metrics
+  event: [manual, push]
+  branch: main
+  path: [.woodpecker/deploy.yaml, README.md, Dockerfile, pom.xml, src/main/**]
+
+services:
+  - name: dockerd
+    image: kokuwaio/dockerd
+    privileged: true
+    ports: [2375, 8080]
+
+steps:
+
+  maven:
+    image: maven:3.9.10-eclipse-temurin-17
+    commands: mvn deploy
+    environment:
+      MAVEN_ARGS: --batch-mode --color=always --no-transfer-progress --settings=.woodpecker/maven/settings.xml
+      MAVEN_GPG_KEY: {from_secret: woodpecker_gpg_key}
+      SONATYPE_ORG_USERNAME: {from_secret: sonatype_org_username}
+      SONATYPE_ORG_PASSWORD: {from_secret: sonatype_org_password}
+
+  image:
+    image: kokuwaio/buildctl
+    settings:
+      name:
+        - docker.io/kokuwaio/keycloak-event-metrics:snapshot
+        - ghcr.io/kokuwaio/keycloak-event-metrics:snapshot
+      build-args: {MAVEN_MIRROR_CENTRAL: "${MAVEN_MIRROR_CENTRAL}"}
+      platform: [linux/amd64, linux/arm64]
+      auth:
+        "https://index.docker.io/v1/":
+          username: {from_secret: docker_io_username}
+          password: {from_secret: docker_io_password}
+        ghcr.io:
+          username: {from_secret: ghcr_io_username}
+          password: {from_secret: ghcr_io_password}
+      annotation:
+        org.opencontainers.image.title: Keycloak Metrics
+        org.opencontainers.image.description: Provides metrics for Keycloak user/admin events and user/client/session count.
+        org.opencontainers.image.url: $CI_REPO_URL
+        org.opencontainers.image.documentation: $CI_REPO_URL/README.md
+        org.opencontainers.image.source: $CI_REPO_CLONE_URL
+        org.opencontainers.image.revision: $CI_COMMIT_SHA
+        org.opencontainers.image.vendor: kokuwa.io
+        org.opencontainers.image.licenses: EUPL-1.2
+        org.opencontainers.image.ref.name: kokuwaio/keycloak-event-metrics
+        org.opencontainers.image.version: snapshot
+
+  dockerhub:
+    image: kokuwaio/dockerhub-metadata
+    settings:
+      repository: kokuwaio/keycloak-event-metrics
+      description-short: Provides metrics for Keycloak user/admin events and user/client/session count.
+      categories: monitoring-and-observability
+      username: {from_secret: dockerhub_username}
+      password: {from_secret: dockerhub_password}
+    when:
+      path: [README.md]
--- a/.woodpecker/lint.yaml
+++ b/.woodpecker/lint.yaml
@ -0,0 +1,26 @@
+when:
+  event: [manual, pull_request, push]
+  branch: main
+  path: [.woodpecker/lint.yaml, renovate.json, Dockerfile, "**/*.y*ml", "**/*.md"]
+
+steps:
+
+  renovate:
+    image: kokuwaio/renovate-config-validator
+    depends_on: []
+    when: [path: [.woodpecker/lint.yaml, renovate.json]]
+
+  yaml:
+    image: kokuwaio/yamllint
+    depends_on: []
+    when: [path: [.woodpecker/lint.yaml, .yamllint.yaml, "**/*.y*ml"]]
+
+  markdown:
+    image: kokuwaio/markdownlint
+    depends_on: []
+    when: [path: [.woodpecker/lint.yaml, .markdownlint.yaml, "**/*.md"]]
+
+  dockerfile:
+    image: kokuwaio/hadolint
+    depends_on: []
+    when: [path: [.woodpecker/lint.yaml, Dockerfile]]
--- a/.woodpecker/maven/settings.xml
+++ b/.woodpecker/maven/settings.xml
@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
+	<interactiveMode>false</interactiveMode>
+	<localRepository>/woodpecker/.m2</localRepository>
+	<servers>
+		<server>
+			<id>git.kokuwa.io</id>
+			<username>${env.FORGEJO_USERNAME}</username>
+			<password>${env.FORGEJO_PASSWORD}</password>
+		</server>
+		<server>
+			<id>sonatype.org</id>
+			<username>${env.SONATYPE_ORG_USERNAME}</username>
+			<password>${env.SONATYPE_ORG_PASSWORD}</password>
+		</server>
+		<server>
+			<id>docker.io</id>
+			<username>${env.DOCKER_IO_USERNAME}</username>
+			<password>${env.DOCKER_IO_PASSWORD}</password>
+		</server>
+		<server>
+			<id>ghcr.io</id>
+			<username>${env.GHCR_IO_USERNAME}</username>
+			<password>${env.GHCR_IO_PASSWORD}</password>
+		</server>
+	</servers>
+	<mirrors>
+		<mirror>
+			<url>http://mirror.woodpecker.svc.cluster.local/maven2</url>
+			<mirrorOf>central</mirrorOf>
+		</mirror>
+	</mirrors>
+</settings>
--- a/.woodpecker/release.yaml
+++ b/.woodpecker/release.yaml
@ -0,0 +1,61 @@
+when:
+  instance: ci.kokuwa.io
+  repo: kokuwaio/keycloak-event-metrics
+  event: deployment
+  branch: main
+
+steps:
+
+  maven:
+    image: maven:3.9.10-eclipse-temurin-17
+    commands:
+      # setup git with ssk key signing
+      - git config user.email "$GIT_USER_EMAIL"
+      - git config user.name "$GIT_USER_NAME"
+      - git config commit.gpgsign true
+      - git config gpg.format ssh
+      - git config user.signingkey /run/secrets/sign.pub
+      - install -m 400 /dev/null /run/secrets/sign && echo "$GIT_SIGN_KEY" > /run/secrets/sign
+      - install -m 444 /dev/null /run/secrets/sign.pub && echo "$GIT_SIGN_PUB" > /run/secrets/sign.pub
+      # release & write version to env file for image
+      - mvn release:prepare release:perform
+      - echo "VERSION=$(mvn help:evaluate --quiet --file=target/checkout/pom.xml -Dexpression=project.version -DforceStdout)" > maven.env
+    environment:
+      MAVEN_ARGS: --batch-mode --color=always --no-transfer-progress --settings=.woodpecker/maven/settings.xml
+      MAVEN_GPG_KEY: {from_secret: woodpecker_gpg_key}
+      GIT_SIGN_KEY: {from_secret: woodpecker_sign_key}
+      GIT_SIGN_PUB: {from_secret: woodpecker_sign_pub}
+      FORGEJO_USERNAME: {from_secret: woodpecker_username}
+      FORGEJO_PASSWORD: {from_secret: woodpecker_password}
+      SONATYPE_ORG_USERNAME: {from_secret: sonatype_org_username}
+      SONATYPE_ORG_PASSWORD: {from_secret: sonatype_org_password}
+
+  image:
+    image: kokuwaio/buildctl
+    settings:
+      env-file: maven.env
+      name:
+        - docker.io/kokuwaio/keycloak-event-metrics:latest
+        - docker.io/kokuwaio/keycloak-event-metrics:$VERSION
+        - ghcr.io/kokuwaio/keycloak-event-metrics:latest
+        - ghcr.io/kokuwaio/keycloak-event-metrics:$VERSION
+      build-args: {MAVEN_MIRROR_CENTRAL: "${MAVEN_MIRROR_CENTRAL}"}
+      platform: [linux/amd64, linux/arm64]
+      auth:
+        "https://index.docker.io/v1/":
+          username: {from_secret: docker_io_username}
+          password: {from_secret: docker_io_password}
+        ghcr.io:
+          username: {from_secret: ghcr_io_username}
+          password: {from_secret: ghcr_io_password}
+      annotation:
+        org.opencontainers.image.title: Keycloak Metrics
+        org.opencontainers.image.description: Provides metrics for Keycloak user/admin events and user/client/session count.
+        org.opencontainers.image.url: $CI_REPO_URL
+        org.opencontainers.image.documentation: $CI_REPO_URL/README.md
+        org.opencontainers.image.source: $CI_REPO_CLONE_URL
+        org.opencontainers.image.revision: $CI_COMMIT_SHA
+        org.opencontainers.image.vendor: kokuwa.io
+        org.opencontainers.image.licenses: EUPL-1.2
+        org.opencontainers.image.ref.name: kokuwaio/keycloak-event-metrics
+        org.opencontainers.image.version: $VERSION
--- a/.woodpecker/verify.yaml
+++ b/.woodpecker/verify.yaml
@ -0,0 +1,24 @@
+when:
+  event: [manual, pull_request]
+  path: [.woodpecker/verify.yaml, pom.xml, src/**]
+
+services:
+  - name: dockerd
+    image: kokuwaio/dockerd
+    privileged: true
+    ports: [2375, 8080]
+
+steps:
+
+  test:
+    image: maven:3.9.10-eclipse-temurin-17
+    commands: mvn verify -P-deploy
+    environment:
+      MAVEN_ARGS: --batch-mode --color=always --no-transfer-progress --settings=.woodpecker/maven/settings.xml
+
+  image:
+    image: kokuwaio/buildctl
+    settings:
+      platform: [linux/amd64, linux/arm64]
+    when:
+      instance: ci.kokuwa.io
--- a/.woodpecker/versions.yaml
+++ b/.woodpecker/versions.yaml
@ -0,0 +1,26 @@
+when:
+  event: [manual, pull_request]
+  path: [.woodpecker/versions.yaml, pom.xml, src/**]
+
+depends_on: [verify]
+matrix:
+  KEYCLOAK_VERSION:
+    - 22.0.5
+    - 23.0.7
+    - 24.0.5
+    - 25.0.6
+    - 26.2.5
+
+services:
+  - name: dockerd
+    image: kokuwaio/dockerd
+    privileged: true
+    ports: [2375, 8080]
+
+steps:
+
+  test:
+    image: maven:3.9.10-eclipse-temurin-17
+    commands: mvn verify -Dversion.org.keycloak.test="$KEYCLOAK_VERSION" -P-deploy,-check
+    environment:
+      MAVEN_ARGS: --batch-mode --color=always --no-transfer-progress --settings=.woodpecker/maven/settings.xml
--- a/.yamllint.yaml
+++ b/.yamllint.yaml
@ -13,7 +13,3 @@ rules:
  quoted-strings:
    quote-type: double
    required: only-when-needed
-
-  # allow everything on keys
-  truthy:
-    check-keys: false
--- a/15
+++ b/15
@ -0,0 +1,15 @@
+FROM maven:3.9.10-eclipse-temurin-17 AS build
+SHELL ["/usr/bin/bash", "-e", "-u", "-c"]
+WORKDIR /build
+ARG MAVEN_ARGS="--batch-mode --color=always --no-transfer-progress"
+ARG MAVEN_MIRROR_CENTRAL
+RUN mkdir "$HOME/.m2" && printf "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
+<settings>\n\
+	<localRepository>/tmp/mvn-repo</localRepository>\n\
+	<mirrors><mirror><url>%s</url><mirrorOf>central</mirrorOf></mirror></mirrors>\n\
+</settings>" "${MAVEN_MIRROR_CENTRAL:-https://repo.maven.apache.org/maven2}" > "$HOME/.m2/settings.xml"
+COPY . .
+RUN --mount=type=cache,target=/tmp/mvn-repo mvn package -DskipTests -P=-dev
+
+FROM busybox:1.37.0-uclibc
+COPY --from=build --chmod=444 /build/target/keycloak-event-metrics.jar /opt/keycloak/providers/keycloak-event-metrics.jar
--- a/Dockerfile.dockerignore
+++ b/Dockerfile.dockerignore
@ -0,0 +1,5 @@
+*
+.*
+
+!pom.xml
+!src/main/**
--- a/425
+++ b/425
@ -1,201 +1,288 @@
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/

-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+                      EUROPEAN UNION PUBLIC LICENCE v. 1.2
+                      EUPL © the European Union 2007, 2016

-   1. Definitions.
+This European Union Public Licence (the ‘EUPL’) applies to the Work (as defined
+below) which is provided under the terms of this Licence. Any use of the Work,
+other than as authorised under this Licence is prohibited (to the extent such
+use is covered by a right of the copyright holder of the Work).

-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
+The Work is provided under the terms of this Licence when the Licensor (as
+defined below) has placed the following notice immediately following the
+copyright notice for the Work:

-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
+        Licensed under the EUPL

-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
+or has expressed by any other means his willingness to license under the EUPL.

-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
+1. Definitions

-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
+In this Licence, the following terms have the following meaning:

-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
+- ‘The Licence’: this Licence.

-      "Work" shall mean the work of authorship, whether in Source or
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--- a/README.md
+++ b/README.md
@ -1,10 +1,15 @@
-# Keycloak Event Metrics
+# Keycloak Metrics

-Provides metrics for Keycloak user/admin events. Tested on Keycloak [20-21](.github/workflows/ci.yaml#L74-L77).
+Provides metrics for Keycloak user/admin events and user/client/session count. Tested on Keycloak [22-26](.woodpecker/verify.yaml#L7-L11).

-[![Apache License, Version 2.0, January 2004](https://img.shields.io/github/license/kokuwaio/keycloak-event-metrics.svg?label=License)](http://www.apache.org/licenses/)
-[![Maven Central](https://img.shields.io/maven-central/v/io.kokuwa.keycloak/keycloak-event-metrics.svg?label=Maven%20Central)](https://central.sonatype.com/search?namespace=io.kokuwa.keycloak&q=keycloak-event-metrics)
-[![CI](https://img.shields.io/github/actions/workflow/status/kokuwaio/keycloak-event-metrics/ci.yaml?branch=main&label=CI)](https://github.com/kokuwaio/keycloak-event-metrics/actions/workflows/ci.yaml?query=branch%3Amain)
+[![maven](https://img.shields.io/maven-central/v/io.kokuwa.keycloak/keycloak-event-metrics.svg?label=maven)](https://central.sonatype.com/artifact/io.kokuwa.keycloak/keycloak-event-metrics)
+[![pulls](https://img.shields.io/docker/pulls/kokuwaio/keycloak-event-metrics)](https://hub.docker.com/r/kokuwaio/keycloak-event-metrics)
+[![size](https://img.shields.io/docker/image-size/kokuwaio/keycloak-event-metrics)](https://hub.docker.com/r/kokuwaio/keycloak-event-metrics)
+[![dockerfile](https://img.shields.io/badge/source-Dockerfile%20-blue)](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/src/branch/main/Dockerfile)
+[![license](https://img.shields.io/badge/license-EUPL%201.2-blue)](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/src/branch/main/LICENSE)
+[![issues](https://img.shields.io/gitea/issues/open/kokuwaio/keycloak-event-metrics?gitea_url=https%3A%2F%2Fgit.kokuwa.io)](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/issues)
+[![prs](https://img.shields.io/gitea/pull-requests/open/kokuwaio/keycloak-event-metrics?gitea_url=https%3A%2F%2Fgit.kokuwa.io)](https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/pulls)
+[![build](https://ci.kokuwa.io/api/badges/kokuwaio/keycloak-event-metrics/status.svg)](https://ci.kokuwa.io/repos/kokuwaio/keycloak-event-metrics/)

 ## Why?

@ -14,7 +19,8 @@ Provides metrics for Keycloak user/admin events. Tested on Keycloak [20-21](.git
 * no realm specific Prometheus endpoint, only `/metrics` (from Quarkus)
 * no jvm/http metrics, this is [already](https://www.keycloak.org/server/configuration-metrics#_available_metrics) included in Keycloak
 * different metric names, can relace model ids with name (see [configuration](#kc_metrics_event_replace_ids))
-* deployed to maven central and very small (10 kb vs. 229 KB [aerogear/keycloak-metrics-spi](https://github.com/aerogear/keycloak-metrics-spi))
+* deployed to maven central and very small (15 kb vs. 151 KB [aerogear/keycloak-metrics-spi](https://github.com/aerogear/keycloak-metrics-spi))
+* gauge for active/offline sessions and user/client count

 ## What?

@ -26,7 +32,7 @@ User events are added with key `keycloak_event_user_total` and tags:

 * `type`: [EventType](https://github.com/keycloak/keycloak/blob/main/server-spi-private/src/main/java/org/keycloak/events/EventType.java#L27) from [Event#type](https://github.com/keycloak/keycloak/blob/main/server-spi-private/src/main/java/org/keycloak/events/Event.java#L44)
 * `realm`: realm id from [Event#realmId](https://github.com/keycloak/keycloak/blob/main/server-spi-private/src/main/java/org/keycloak/events/Event.java#L46)
-* `client`: client id from [Event#clientId](https://github.com/keycloak/keycloak/blob/main/server-spi-private/src/main/java/org/keycloak/events/Event.java#L48)
+* `client`: client id from [Event#clientId](https://github.com/keycloak/keycloak/blob/main/server-spi-private/src/main/java/org/keycloak/events/Event.java#L48), unknown client_ids are grouped into UNKOWN
 * `error`: error from [Event#error](https://github.com/keycloak/keycloak/blob/main/server-spi-private/src/main/java/org/keycloak/events/Event.java#L56), only present for error types

 Examples:
@ -35,6 +41,7 @@ Examples:
 keycloak_event_user_total{client="test",realm="9039a0b5-e8c9-437a-a02e-9d91b04548a4",type="LOGIN",error="",} 2.0
 keycloak_event_user_total{client="test",realm="1fdb3465-1675-49e8-88ad-292e2f42ee72",type="LOGIN",error="",} 1.0
 keycloak_event_user_total{client="test",realm="1fdb3465-1675-49e8-88ad-292e2f42ee72",type="LOGIN_ERROR",error="invalid_user_credentials",} 1.0
+keycloak_event_user_total{client="UNKNOWN",realm="1fdb3465-1675-49e8-88ad-292e2f42ee72",type="LOGIN_ERROR",error="invalid_user_credentials",} 1.0
 ```

 ### Admin Events
@ -57,7 +64,7 @@ keycloak_event_admin_total{error="",operation="CREATE",realm="9039a0b5-e8c9-437a

 ### `KC_METRICS_EVENT_REPLACE_IDS`

-If set to `true` than replace model ids with names:
+Set to `true` (the default value) than replace model ids from events with names:

 * [RealmModel#getId()](https://github.com/keycloak/keycloak/blob/main/server-spi/src/main/java/org/keycloak/models/RealmModel.java#L82) with [RealmModel#getName()](https://github.com/keycloak/keycloak/blob/main/server-spi/src/main/java/org/keycloak/models/RealmModel.java#L84)

@ -69,28 +76,102 @@ keycloak_event_user_total{client="other-client",error="",realm="other-realm",typ
 keycloak_event_user_total{client="other-client",error="invalid_user_credentials",realm="other-realm",type="LOGIN_ERROR",} 1.0
 ```

+### `KC_METRICS_STATS_ENABLED`
+
+Set to `true` (default is `false`) to provide metrics for user/client count per realm and session count per client. Metrics:
+
+```txt
+# HELP keycloak_users  
+# TYPE keycloak_users gauge
+keycloak_users{realm="master",} 1.0
+keycloak_users{realm="my-realm",} 2.0
+keycloak_users{realm="other-realm",} 1.0# HELP keycloak_active_user_sessions
+# TYPE keycloak_active_user_sessions gauge
+keycloak_active_user_sessions{client="admin-cli",realm="userCount_1",} 0.0
+keycloak_active_user_sessions{client="admin-cli",realm="userCount_2",} 0.0
+keycloak_active_user_sessions{client="admin-cli",realm="master",} 1.0
+# TYPE keycloak_active_client_sessions gauge
+keycloak_active_client_sessions{client="admin-cli",realm="userCount_1",} 0.0
+keycloak_active_client_sessions{client="admin-cli",realm="userCount_2",} 0.0
+keycloak_active_client_sessions{client="admin-cli",realm="master",} 0.0
+# TYPE keycloak_offline_sessions gauge
+keycloak_offline_sessions{client="admin-cli",realm="userCount_1",} 0.0
+keycloak_offline_sessions{client="admin-cli",realm="userCount_2",} 0.0
+keycloak_offline_sessions{client="admin-cli",realm="master",} 0.0
+```
+
+### `KC_METRICS_STATS_INTERVAL`
+
+If `KC_METRICS_STATS_ENABLED` is `true` this will define the interval for scraping. If not configured `PT60s` will be used.
+
+### `KC_METRICS_STATS_INFO_THRESHOLD` and `KC_METRICS_STATS_WARN_THRESHOLD`
+
+If `KC_METRICS_STATS_ENABLED` is `true` this envs will define logging if scraping takes to long. Both envs are parsed as `java.lang.Duration`.
+
+Default values:
+
+* `KC_METRICS_STATS_INFO_THRESHOLD`: 50% of `KC_METRICS_STATS_INTERVAL` = 30s
+* `KC_METRICS_STATS_WARN_THRESHOLD`: 75% of `KC_METRICS_STATS_INTERVAL` = 45s
+
+If scrapping takes less than `KC_METRICS_STATS_INFO_THRESHOLD` duration will be logged on debug level.
+
 ## Installation

+### Grafana Dashboard
+
+Can be found here: [keycloak-metrics.json](https://git.kokuwa.io/keycloak/keycloak/blob/main/src/test/k3s/dev/grafana/files/dashboards/keycloak-metrics.json)
+
 ### Testcontainers

 For usage in [Testcontainers](https://www.testcontainers.org/) see [KeycloakExtension.java](src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakExtension.java#L57-L68)

+### Container Image
+
+Registries:
+
+* [ghcr.io/kokuwaio/keycloak-event-metrics](https://github.com/kokuwaio/keycloak-event-metrics/pkgs/container/keycloak-event-metrics)
+* [docker.io/kokuwaio/keycloak-event-metrics](https://hub.docker.com/r/kokuwaio/keycloak-event-metrics)
+
+This images are based on busybox, so you can use cp to copy the jar into your keycloak.
+
 ### Docker

-Check: [kokuwaio/keycloak](https://github.com/kokuwaio/keycloak)
+Check: [kowaio/keycloak](https://git.kokuwa.io/keycloak/keycloak)

 Dockerfile:

 ```Dockerfile
-FROM quay.io/keycloak/keycloak:21.0.1
+###
+### download keycloak event metrics
+###
+
+FROM debian:stable-slim AS metrics
+
+RUN apt-get -qq update
+RUN apt-get -qq install --yes --no-install-recommends ca-certificates wget
+
+ARG METRICS_VERSION=2.0.0
+ARG METRICS_FILE=keycloak-event-metrics-${METRICS_VERSION}.jar
+ARG METRICS_URL=https://repo1.maven.org/maven2/io/kokuwa/keycloak/keycloak-event-metrics/${METRICS_VERSION}
+
+RUN wget --quiet --no-hsts ${METRICS_URL}/${METRICS_FILE}
+RUN wget --quiet --no-hsts ${METRICS_URL}/${METRICS_FILE}.sha1
+RUN echo "$(cat ${METRICS_FILE}.sha1) ${METRICS_FILE}" sha1sum --quiet --check --strict -
+RUN mkdir -p /opt/keycloak/providers
+RUN mv ${METRICS_FILE} /opt/keycloak/providers
+
+###
+### build keycloak with metrics
+###
+
+FROM quay.io/keycloak/keycloak:25.2.5

 ENV KEYCLOAK_ADMIN=admin
 ENV KEYCLOAK_ADMIN_PASSWORD=password
 ENV KC_HEALTH_ENABLED=true
 ENV KC_METRICS_ENABLED=true
-ENV KC_LOG_CONSOLE_COLOR=true

-ADD target/keycloak-event-metrics-0.0.1-SNAPSHOT.jar /opt/keycloak/providers
+COPY --from=metrics /opt/keycloak/providers /opt/keycloak/providers
 RUN /opt/keycloak/bin/kc.sh build
 ```

--- a/pom.xml
+++ b/pom.xml
@ -4,11 +4,11 @@

 	<groupId>io.kokuwa.keycloak</groupId>
 	<artifactId>keycloak-event-metrics</artifactId>
-	<version>0.2.1</version>
+	<version>2.0.1-SNAPSHOT</version>

 	<name>Keycloak Metrics</name>
 	<description>Provides metrics for Keycloak user/admin events</description>
-	<url>https://github.com/kokuwaio/keycloak-event-metrics</url>
+	<url>https://git.kokuwa.io/kokuwaio/keycloak-event-metrics</url>
 	<inceptionYear>2023</inceptionYear>
 	<organization>
 		<name>Kokuwa.io</name>
@ -16,45 +16,41 @@
 	</organization>
 	<licenses>
 		<license>
-			<name>Apache License 2.0</name>
-			<url>https://www.apache.org/licenses/LICENSE-2.0</url>
+			<name>EUPL-1.2</name>
+			<url>https://eupl.eu/1.2/en</url>
+			<distribution>repo</distribution>
 		</license>
 	</licenses>

 	<developers>
 		<developer>
-			<id>stephanschnabel</id>
+			<id>stephan.schnabel</id>
 			<name>Stephan Schnabel</name>
-			<url>https://github.com/sschnabe</url>
-			<email>stephan@grayc.de</email>
-			<organization>GrayC GmbH</organization>
-			<organizationUrl>https://grayc.de</organizationUrl>
+			<url>https://schnabel.org</url>
+			<email>stephan@schnabel.org</email>
+			<timezone>Europe/Berlin</timezone>
 		</developer>
 	</developers>

 	<scm>
-		<url>https://github.com/kokuwaio/keycloak-event-metrics</url>
-		<connection>scm:git:https://github.com/kokuwaio/keycloak-event-metrics.git</connection>
-		<developerConnection>scm:git:https://github.com/kokuwaio/keycloak-event-metrics.git</developerConnection>
-		<tag>0.2.1</tag>
+		<url>https://git.kokuwa.io/kokuwaio/keycloak-event-metrics</url>
+		<connection>scm:git:https://git.kokuwa.io/kokuwaio/keycloak-event-metrics.git</connection>
+		<developerConnection>scm:git:https://git.kokuwa.io/kokuwaio/keycloak-event-metrics.git</developerConnection>
+		<tag>HEAD</tag>
 	</scm>
 	<issueManagement>
-		<system>github</system>
-		<url>https://github.com/kokuwaio/keycloak-event-metrics/issues</url>
+		<system>forgejo</system>
+		<url>https://git.kokuwa.io/kokuwaio/keycloak-event-metrics/issues</url>
 	</issueManagement>
 	<ciManagement>
-		<system>github</system>
-		<url>https://github.com/kokuwaio/keycloak-event-metrics/actions</url>
+		<system>woodpecker</system>
+		<url>https://ci.kokuwa.io/repos/kokuwaio/keycloak-event-metrics</url>
 	</ciManagement>
 	<distributionManagement>
 		<snapshotRepository>
-			<id>sonatype-nexus</id>
-			<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+			<id>sonatype.org</id>
+			<url>https://central.sonatype.com/repository/maven-snapshots/</url>
 		</snapshotRepository>
-		<repository>
-			<id>sonatype-nexus</id>
-			<url>https://oss.sonatype.org/service/local/staging/deploy/maven2</url>
-		</repository>
 	</distributionManagement>

 	<properties>
@ -63,73 +59,40 @@
 		<!-- =============================== Build =============================== -->
 		<!-- ===================================================================== -->

+		<project.build.outputTimestamp>2025-06-25T14:15:39Z</project.build.outputTimestamp>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.build.propertiesEncoding>ISO-8859-1</project.build.propertiesEncoding>

-		<maven.compiler.source>17</maven.compiler.source>
-		<maven.compiler.target>17</maven.compiler.target>
-		<maven.compiler.showDeprecation>true</maven.compiler.showDeprecation>
-		<maven.compiler.showWarnings>true</maven.compiler.showWarnings>
+		<maven.compiler.release>17</maven.compiler.release>
+		<maven.compiler.source>${maven.compiler.release}</maven.compiler.source>
+		<maven.compiler.target>${maven.compiler.release}</maven.compiler.target>
+		<maven.compiler.compilerArgument>-Xlint:all</maven.compiler.compilerArgument>
 		<maven.compiler.failOnWarning>true</maven.compiler.failOnWarning>
-		<maven.test.redirectTestOutputToFile>true</maven.test.redirectTestOutputToFile>
+		<maven.compiler.showWarnings>true</maven.compiler.showWarnings>
+		<maven.compiler.showDeprecation>true</maven.compiler.showDeprecation>
+
+		<impsort.removeUnused>true</impsort.removeUnused>
+		<impsort.groups>java.,javax.,jakarta.,org.</impsort.groups>
+		<formatter.configFile>${project.basedir}/src/eclipse/formatter.xml</formatter.configFile>

 		<!-- ===================================================================== -->
-		<!-- ============================== Libaries ============================= -->
+		<!-- ============================= Versions ============================== -->
 		<!-- ===================================================================== -->

-		<!-- plugins -->
-
-		<version.org.apache.maven.plugins.checkstyle>3.2.1</version.org.apache.maven.plugins.checkstyle>
-		<version.org.apache.maven.plugins.clean>3.2.0</version.org.apache.maven.plugins.clean>
-		<version.org.apache.maven.plugins.compiler>3.11.0</version.org.apache.maven.plugins.compiler>
-		<version.org.apache.maven.plugins.dependency>3.5.0</version.org.apache.maven.plugins.dependency>
-		<version.org.apache.maven.plugins.deploy>3.1.1</version.org.apache.maven.plugins.deploy>
-		<version.org.apache.maven.plugins.gpg>3.0.1</version.org.apache.maven.plugins.gpg>
-		<version.org.apache.maven.plugins.install>3.1.1</version.org.apache.maven.plugins.install>
-		<version.org.apache.maven.plugins.jar>3.3.0</version.org.apache.maven.plugins.jar>
-		<version.org.apache.maven.plugins.javadoc>1.0.0</version.org.apache.maven.plugins.javadoc>
-		<version.org.apache.maven.plugins.release>3.0.0</version.org.apache.maven.plugins.release>
-		<version.org.apache.maven.plugins.resources>3.3.1</version.org.apache.maven.plugins.resources>
-		<version.org.apache.maven.plugins.source>3.2.1</version.org.apache.maven.plugins.source>
-		<version.org.apache.maven.plugins.surefire>3.0.0</version.org.apache.maven.plugins.surefire>
-		<version.org.codehaus.mojo.tidy>1.2.0</version.org.codehaus.mojo.tidy>
-		<version.org.sonatype.plugins.nexus-staging>1.6.13</version.org.sonatype.plugins.nexus-staging>
-		<version.com.puppycrawl.tools.checkstyle>10.9.3</version.com.puppycrawl.tools.checkstyle>
-		<version.io.kokuwa.checkstyle>0.5.6</version.io.kokuwa.checkstyle>
-
-		<!-- dependencies -->
-
-		<version.org.keycloak>21.1.0</version.org.keycloak>
-		<version.org.mockito>5.2.0</version.org.mockito>
-		<version.org.testcontainers>1.18.0</version.org.testcontainers>
+		<version.org.keycloak>26.2.5</version.org.keycloak>
+		<version.org.keycloak.test>${version.org.keycloak}</version.org.keycloak.test>

 	</properties>

 	<dependencyManagement>
 		<dependencies>
-
-			<!-- keycloak -->
 			<dependency>
 				<groupId>org.keycloak</groupId>
-				<artifactId>keycloak-parent</artifactId>
+				<artifactId>keycloak-quarkus-server</artifactId>
 				<version>${version.org.keycloak}</version>
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>
-
-			<!-- test -->
-			<dependency>
-				<groupId>org.mockito</groupId>
-				<artifactId>mockito-junit-jupiter</artifactId>
-				<version>${version.org.mockito}</version>
-			</dependency>
-			<dependency>
-				<groupId>org.testcontainers</groupId>
-				<artifactId>testcontainers-bom</artifactId>
-				<version>${version.org.testcontainers}</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-
 		</dependencies>
 	</dependencyManagement>
 	<dependencies>
@ -138,41 +101,92 @@
 		<dependency>
 			<groupId>org.keycloak</groupId>
 			<artifactId>keycloak-core</artifactId>
+			<version>${version.org.keycloak.test}</version>
 			<scope>provided</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.keycloak</groupId>
 			<artifactId>keycloak-server-spi</artifactId>
+			<version>${version.org.keycloak.test}</version>
 			<scope>provided</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.keycloak</groupId>
 			<artifactId>keycloak-server-spi-private</artifactId>
+			<version>${version.org.keycloak.test}</version>
 			<scope>provided</scope>
 		</dependency>
-		<dependency>
-			<groupId>org.keycloak</groupId>
-			<artifactId>keycloak-quarkus-server</artifactId>
-			<scope>provided</scope>
-			<exclusions>
-				<exclusion><!-- references ancient `commons-io` -->
-					<groupId>com.openshift</groupId>
-					<artifactId>openshift-restclient-java</artifactId>
-				</exclusion>
-				<exclusion>
-					<groupId>org.keycloak</groupId>
-					<artifactId>keycloak-admin-ui</artifactId>
-				</exclusion>
-				<exclusion>
-					<groupId>org.keycloak</groupId>
-					<artifactId>keycloak-account-ui</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
 		<dependency>
 			<groupId>org.keycloak</groupId>
 			<artifactId>keycloak-admin-client</artifactId>
 			<scope>test</scope>
+			<exclusions>
+				<exclusion>
+					<groupId>org.glassfish.jaxb</groupId>
+					<artifactId>jaxb-runtime</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>org.jboss.resteasy</groupId>
+					<artifactId>resteasy-multipart-provider</artifactId>
+				</exclusion>
+				<!-- The POM for ... is invalid -->
+				<exclusion>
+					<groupId>com.sun.istack</groupId>
+					<artifactId>istack-commons-tools</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>com.sun.istack</groupId>
+					<artifactId>istack-commons-runtime</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+
+		<!-- libraries -->
+		<dependency>
+			<groupId>org.jboss.logging</groupId>
+			<artifactId>jboss-logging</artifactId>
+			<scope>provided</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.jboss.logging</groupId>
+			<artifactId>commons-logging-jboss-logging</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.hibernate.orm</groupId>
+			<artifactId>hibernate-core</artifactId>
+			<scope>provided</scope>
+			<exclusions>
+				<exclusion>
+					<groupId>javax.xml.bind</groupId>
+					<artifactId>jaxb-api</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>org.glassfish.jaxb</groupId>
+					<artifactId>jaxb-runtime</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>org.hibernate.common</groupId>
+					<artifactId>hibernate-commons-annotations</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>org.jboss</groupId>
+					<artifactId>jandex</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>antlr</groupId>
+					<artifactId>antlr</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>com.fasterxml</groupId>
+					<artifactId>classmate</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-core</artifactId>
+			<scope>provided</scope>
 		</dependency>

 		<!-- test -->
@ -183,19 +197,14 @@
 		</dependency>
 		<dependency>
 			<groupId>org.testcontainers</groupId>
-			<artifactId>junit-jupiter</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency><!-- is missing and necessary for `keycloak-admin-client` -->
-			<groupId>org.wildfly.client</groupId>
-			<artifactId>wildfly-client-config</artifactId>
-			<version>1.0.1.Final</version>
+			<artifactId>testcontainers</artifactId>
 			<scope>test</scope>
 		</dependency>

 	</dependencies>

 	<build>
+		<finalName>${project.artifactId}</finalName>
 		<testResources>
 			<testResource>
 				<directory>${project.basedir}/src/test/resources</directory>
@ -204,149 +213,108 @@
 		</testResources>
 		<pluginManagement>
 			<plugins>
-				<plugin>
-					<groupId>org.apache.maven.plugins</groupId>
-					<artifactId>maven-checkstyle-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.checkstyle}</version>
-					<configuration>
-						<configLocation>checkstyle.xml</configLocation>
-						<suppressionsLocation>checkstyle-suppression.xml</suppressionsLocation>
-						<includeTestSourceDirectory>true</includeTestSourceDirectory>
-					</configuration>
-					<dependencies>
-						<dependency>
-							<groupId>com.puppycrawl.tools</groupId>
-							<artifactId>checkstyle</artifactId>
-							<version>${version.com.puppycrawl.tools.checkstyle}</version>
-						</dependency>
-						<dependency>
-							<groupId>io.kokuwa</groupId>
-							<artifactId>maven-parent</artifactId>
-							<version>${version.io.kokuwa.checkstyle}</version>
-							<type>zip</type>
-							<classifier>checkstyle</classifier>
-						</dependency>
-					</dependencies>
-				</plugin>
-				<plugin>
-					<groupId>org.apache.maven.plugins</groupId>
-					<artifactId>maven-clean-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.clean}</version>
-				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-compiler-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.compiler}</version>
-				</plugin>
-				<plugin>
-					<groupId>org.apache.maven.plugins</groupId>
-					<artifactId>maven-dependency-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.dependency}</version>
+					<version>3.14.0</version>
+					<configuration>
+						<compilerArgument>${maven.compiler.compilerArgument}</compilerArgument>
+					</configuration>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-deploy-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.deploy}</version>
+					<version>3.1.4</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-failsafe-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.surefire}</version>
-					<configuration>
-						<failIfNoTests>true</failIfNoTests>
-						<redirectTestOutputToFile>${maven.test.redirectTestOutputToFile}</redirectTestOutputToFile>
-					</configuration>
+					<version>3.5.3</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-gpg-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.gpg}</version>
+					<version>3.2.7</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-install-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.install}</version>
+					<version>3.1.4</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-jar-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.jar}</version>
+					<version>3.4.2</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-javadoc-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.jar}</version>
+					<version>3.11.2</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-release-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.release}</version>
+					<version>3.1.1</version>
 					<configuration>
-						<tagNameFormat>@{project.version}</tagNameFormat>
-						<releaseProfiles>release</releaseProfiles>
-						<localCheckout>true</localCheckout>
+						<preparationGoals>test</preparationGoals>
+						<preparationProfiles>check</preparationProfiles>
+						<goals>deploy -DskipITs</goals>
+						<releaseProfiles>deploy,release</releaseProfiles>
 						<signTag>true</signTag>
-						<scmReleaseCommitComment>@{prefix} prepare release @{releaseLabel} [no ci]</scmReleaseCommitComment>
+						<scmReleaseCommitComment>@{prefix} prepare release @{releaseLabel} [CI SKIP]</scmReleaseCommitComment>
+						<tagNameFormat>@{project.version}</tagNameFormat>
 					</configuration>
 				</plugin>
-				<plugin>
-					<groupId>org.apache.maven.plugins</groupId>
-					<artifactId>maven-source-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.source}</version>
-				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-resources-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.resources}</version>
+					<version>3.3.1</version>
 					<configuration>
-						<propertiesEncoding>UTF-8</propertiesEncoding>
+						<propertiesEncoding>${project.build.propertiesEncoding}</propertiesEncoding>
 					</configuration>
 				</plugin>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-site-plugin</artifactId>
+					<version>3.21.0</version>
+				</plugin>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-source-plugin</artifactId>
+					<version>3.3.1</version>
+				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-surefire-plugin</artifactId>
-					<version>${version.org.apache.maven.plugins.surefire}</version>
+					<version>3.5.3</version>
 				</plugin>
 				<plugin>
 					<groupId>org.codehaus.mojo</groupId>
 					<artifactId>tidy-maven-plugin</artifactId>
-					<version>${version.org.codehaus.mojo.tidy}</version>
+					<version>1.4.0</version>
 				</plugin>
 				<plugin>
-					<groupId>org.sonatype.plugins</groupId>
-					<artifactId>nexus-staging-maven-plugin</artifactId>
-					<version>${version.org.sonatype.plugins.nexus-staging}</version>
+					<groupId>org.sonatype.central</groupId>
+					<artifactId>central-publishing-maven-plugin</artifactId>
+					<version>0.8.0</version>
+				</plugin>
+				<plugin>
+					<groupId>net.revelc.code.formatter</groupId>
+					<artifactId>formatter-maven-plugin</artifactId>
+					<version>2.27.0</version>
+					<configuration>
+						<configFile>${formatter.configFile}</configFile>
+					</configuration>
+				</plugin>
+				<plugin>
+					<groupId>net.revelc.code</groupId>
+					<artifactId>impsort-maven-plugin</artifactId>
+					<version>1.12.0</version>
 				</plugin>
 			</plugins>
 		</pluginManagement>
 		<plugins>

-			<!-- fail if any pom is dirty -->
-			<plugin>
-				<groupId>org.codehaus.mojo</groupId>
-				<artifactId>tidy-maven-plugin</artifactId>
-				<executions>
-					<execution>
-						<goals>
-							<goal>check</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-
-			<!-- fail if checkstyle reports problems -->
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-checkstyle-plugin</artifactId>
-				<executions>
-					<execution>
-						<goals>
-							<goal>check</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-
 			<!-- run tests -->
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
@ -361,29 +329,143 @@
 				</executions>
 			</plugin>

+			<!-- disable default executions -->
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-install-plugin</artifactId>
+				<executions>
+					<execution>
+						<id>default-install</id>
+						<phase />
+					</execution>
+				</executions>
+			</plugin>
+
 		</plugins>
 	</build>

 	<profiles>
 		<profile>
-			<id>release</id>
+			<id>dev</id>
+			<activation>
+				<property>
+					<name>!env.CI</name>
+				</property>
+			</activation>
+			<properties>
+				 <maven.test.redirectTestOutputToFile>true</maven.test.redirectTestOutputToFile>
+			</properties>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.codehaus.mojo</groupId>
+						<artifactId>tidy-maven-plugin</artifactId>
+						<executions>
+							<execution>
+								<phase>validate</phase>
+								<goals>
+									<goal>pom</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+					<plugin>
+						<groupId>net.revelc.code</groupId>
+						<artifactId>impsort-maven-plugin</artifactId>
+						<executions>
+							<execution>
+								<phase>validate</phase>
+								<goals>
+									<goal>sort</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+					<plugin>
+						<groupId>net.revelc.code.formatter</groupId>
+						<artifactId>formatter-maven-plugin</artifactId>
+						<executions>
+							<execution>
+								<phase>validate</phase>
+								<goals>
+									<goal>format</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
+		<profile>
+			<id>check</id>
+			<activation>
+				<property>
+					<name>env.CI</name>
+				</property>
+			</activation>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.codehaus.mojo</groupId>
+						<artifactId>tidy-maven-plugin</artifactId>
+						<executions>
+							<execution>
+								<phase>validate</phase>
+								<goals>
+									<goal>check</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+					<plugin>
+						<groupId>net.revelc.code</groupId>
+						<artifactId>impsort-maven-plugin</artifactId>
+						<executions>
+							<execution>
+								<phase>validate</phase>
+								<goals>
+									<goal>check</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+					<plugin>
+						<groupId>net.revelc.code.formatter</groupId>
+						<artifactId>formatter-maven-plugin</artifactId>
+						<executions>
+							<execution>
+								<phase>validate</phase>
+								<goals>
+									<goal>validate</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
+		<profile>
+			<id>deploy</id>
+			<activation>
+				<property>
+					<name>env.CI</name>
+				</property>
+			</activation>
 			<build>
 				<plugins>

-					<!-- add source for downstream projects -->
+					<!-- add source/javadoc -->
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-source-plugin</artifactId>
 						<executions>
 							<execution>
 								<goals>
-									<goal>jar-no-fork</goal>
+									<goal>jar</goal>
 								</goals>
 							</execution>
 						</executions>
 					</plugin>
-
-					<!-- add javadoc for downstream projects -->
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-javadoc-plugin</artifactId>
@ -396,7 +478,7 @@
 						</executions>
 					</plugin>

-					<!-- sign documents before upload -->
+					<!-- sign before upload -->
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-gpg-plugin</artifactId>
@ -405,22 +487,30 @@
 								<goals>
 									<goal>sign</goal>
 								</goals>
+								<configuration>
+									<signer>bc</signer>
+								</configuration>
 							</execution>
 						</executions>
 					</plugin>

-					<!-- autoclose sonatype nexus repo -->
-					<plugin>
-						<groupId>org.sonatype.plugins</groupId>
-						<artifactId>nexus-staging-maven-plugin</artifactId>
-						<extensions>true</extensions>
-						<configuration>
-							<serverId>sonatype-nexus</serverId>
-							<nexusUrl>https://oss.sonatype.org/</nexusUrl>
-							<autoReleaseAfterClose>true</autoReleaseAfterClose>
-						</configuration>
-					</plugin>
-
+				</plugins>
+			</build>
+		</profile>
+		<profile>
+			<id>release</id>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.sonatype.central</groupId>
+						<artifactId>central-publishing-maven-plugin</artifactId>
+						<extensions>true</extensions>
+						<configuration>
+							<publishingServerId>sonatype.org</publishingServerId>
+							<autoPublish>true</autoPublish>
+							<waitUntil>published</waitUntil>
+						</configuration>
+					</plugin>
 				</plugins>
 			</build>
 		</profile>
--- a/renovate.json
+++ b/renovate.json
@ -0,0 +1,5 @@
+{
+	"$schema": "https://docs.renovatebot.com/renovate-schema.json",
+	"extends": ["local>kokuwaio/renovate-config", ":reviewer(stephan.schnabel)"],
+	"pinDigests": false
+}
--- a/src/eclipse/formatter.xml
+++ b/src/eclipse/formatter.xml
@ -0,0 +1,404 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<profiles version="23">
+	<profile kind="CodeFormatterProfile" name="kokuwa.io" version="23">
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_ellipsis" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_allocation_expression" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_for_statment" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_block_boundaries" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_parameters" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_for_parameter" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_package" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_while" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.format_javadoc_comments" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.indentation.size" value="4" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_enum_constant_declaration" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.align_with_spaces" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.continuation_indentation" value="2" />
+		<setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_before_code_block" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_switch_case_expressions" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_package" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_local_declarations" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_enum_constant" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_parameterized_type_reference" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.indent_root_tags" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_or_operator_multicatch" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.enabling_tag" value="@formatter:on" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.count_line_length_from_starting_position" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_record_components" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_parameter" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_multiplicative_operator" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_explicitconstructorcall_arguments" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_brace_in_array_initializer" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_arguments" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_method" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameterized_type_references" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_logical_operator" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_parenthesized_expression" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_annotation_declaration_on_one_line" value="one_line_if_empty" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_record_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_enum_constant" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_multiplicative_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_and_in_type_parameter" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_assignment_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_for" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.preserve_white_space_between_code_and_line_comments" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_local_variable" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_abstract_method" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_enum_constant_declaration_on_one_line" value="one_line_if_empty" />
+		<setting id="org.eclipse.jdt.core.formatter.align_variable_declarations_on_columns" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_invocation" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_union_type_in_multicatch" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_catch_clause" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_array_initializer" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_annotation" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_explicit_constructor_call" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_multiplicative_operator" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_anonymous_type_declaration_on_one_line" value="one_line_if_empty" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_switch_case_expressions" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_shift_operator" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_annotation_declaration_header" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.brace_position_for_block" value="end_of_line" />
+		<setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_end_of_code_block" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_bitwise_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_constructor_declaration" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_type_parameters" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_compact_loops" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_block_comment" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_simple_for_body_on_same_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_at_end_of_file_if_missing" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_switch_case_arrow_operator" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_array_initializer" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_unary_operator" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.format_line_comment_starting_on_first_column" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_annotation" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_ellipsis" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_try_resources" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_assert" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_annotations_on_enum_constant" value="49" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_and_in_type_parameter" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_parenthesized_expression" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.text_block_indentation" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.align_type_members_on_columns" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_assignment" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_module_statements" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_type_header" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.align_tags_names_descriptions" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_enum_constant" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_if_then_body_block_on_one_line" value="one_line_preserve" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_first_class_body_declaration" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_parameters" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.format_guardian_clause_on_one_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_if" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.align_assignment_statements_on_columns" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_permitted_types" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.brace_position_for_block_in_case" value="end_of_line" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_constructor_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_conditional_expression_chain" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.format_header" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_type_annotations" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_assertion_message_operator" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_switch" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_method_declaration" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.align_fields_grouping_blank_lines" value="2147483647" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_javadoc_boundaries" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_bitwise_operator" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.brace_position_for_annotation_type_declaration" value="end_of_line" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_for" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_resources_in_try" value="80" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_selector_in_method_invocation" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_synchronized" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_allocation_expression" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.format_source_code" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_field" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_method" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_superclass_in_type_declaration" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_throw" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_not_operator" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_type_annotation" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_brace_in_array_initializer" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_parenthesized_expression" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.format_html" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation_type_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_method_delcaration" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_compact_if" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_empty_lines" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_type_arguments" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_unary_operator" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_enum_constant" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_annotation" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_declarations" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_annotations_on_package" value="49" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_switch" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_else_in_if_statement" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_assignment_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_label" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_declaration_header" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_conditional" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_parameters" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_cast" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_arrow_in_switch_case" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_while_in_do_statement" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_type_reference" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_permitted_types_in_type_declaration" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_record_header" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_parameterized_type_reference" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_opening_brace_in_array_initializer" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_breaks_compare_to_cases" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_bitwise_operator" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.javadoc_do_not_separate_block_tags" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_try" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_lambda_arrow" value="insert" />
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+		<setting id="org.eclipse.jdt.core.formatter.comment.indent_tag_description" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_imple_if_on_one_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.brace_position_for_record_constructor" value="end_of_line" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_declaration" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_string_concatenation" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_multiple_fields" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_constant_arguments" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator" value="do not insert" />
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+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_shift_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_catch" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_shift_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_simple_do_while_body_on_same_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_record_components" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_outer_expressions_when_nested" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_paren_in_cast" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation_type_member_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_expressions_in_for_loop_header" value="0" />
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+		<setting id="org.eclipse.jdt.core.formatter.keep_simple_getter_setter_on_one_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_while" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.brace_position_for_block_in_case_after_arrow" value="end_of_line" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_parameters" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_string_concatenation" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_lambda_arrow" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.join_lines_in_comments" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_record_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_relational_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_import_groups" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_at_in_annotation_type_declaration" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_logical_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_method_invocation" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_imports" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_record_declaration" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_throws" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_switch_statement" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_increments" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments" value="insert" />
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+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_inits" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.disabling_tag" value="@formatter:off" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_enum_constants" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_imports" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_end_of_method_body" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_if_while_statement" value="common_lines" />
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+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_return" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_arrow_in_switch_case" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_field" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_type_declarations" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_switch_body_block_on_one_line" value="one_line_never" />
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+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_inits" value="insert" />
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+		<setting id="org.eclipse.jdt.core.formatter.comment.align_tags_descriptions_grouped" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.line_length" value="120" />
+		<setting id="org.eclipse.jdt.core.formatter.use_on_off_tags" value="false" />
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+		<setting id="org.eclipse.jdt.core.formatter.keep_loop_body_block_on_one_line" value="one_line_if_empty" />
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+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_for" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_type_declaration_on_one_line" value="one_line_if_empty" />
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+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_relational_operator" value="insert" />
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+		<setting id="org.eclipse.jdt.core.formatter.keep_record_declaration_on_one_line" value="one_line_if_empty" />
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+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_question_in_conditional" value="insert" />
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+		<setting id="org.eclipse.jdt.core.formatter.align_arrows_in_switch_on_columns" value="false" />
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+		<setting id="org.eclipse.jdt.core.formatter.comment.format_line_comments" value="true" />
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+		<setting id="org.eclipse.jdt.core.formatter.join_line_comments" value="false" />
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+		<setting id="org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations" value="false" />
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+		<setting id="org.eclipse.jdt.core.formatter.keep_code_block_on_one_line" value="one_line_if_empty" />
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+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_parameters" value="insert" />
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+		<setting id="org.eclipse.jdt.core.formatter.keep_lambda_body_block_on_one_line" value="one_line_if_empty" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_annotations_on_method" value="49" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_parameterized_type_reference" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_record_constructor_on_one_line" value="one_line_if_empty" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_record_declaration" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_empty_array_initializer_on_one_line" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_assertion_message" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_constructor_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_new_chunk" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_allocation_expression" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_constructor_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_member_type" value="1" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_logical_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_qualified_allocation_expression" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_record_declaration" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_if" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_relational_operator" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_cast" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.format_block_comments" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration" value="16" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_throws" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_last_class_body_declaration" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_body" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_simple_while_body_on_same_line" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_logical_operator" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_statement_group_in_switch" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_reference" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_annotation" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_constant_arguments" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.parentheses_positions_in_lambda_declaration" value="common_lines" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_permitted_types" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_reference" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.keep_enum_declaration_on_one_line" value="one_line_if_empty" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.brace_position_for_enum_constant" value="end_of_line" />
+		<setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="end_of_line" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_multiplicative_operator" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_package" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_throws" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional" value="insert" />
+		<setting id="org.eclipse.jdt.core.formatter.comment.indent_parameter_description" value="false" />
+		<setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_code_block" value="0" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="tab" />
+		<setting id="org.eclipse.jdt.core.formatter.wrap_before_string_concatenation" value="true" />
+		<setting id="org.eclipse.jdt.core.formatter.lineSplit" value="120" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation" value="do not insert" />
+		<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch" value="insert" />
+	</profile>
+</profiles>
--- a/src/main/java/io/kokuwa/keycloak/metrics/MicrometerEventListenerFactory.java
+++ b/src/main/java/io/kokuwa/keycloak/metrics/MicrometerEventListenerFactory.java
@ -1,48 +0,0 @@
-package io.kokuwa.keycloak.metrics;
-
-import javax.enterprise.inject.spi.CDI;
-
-import org.jboss.logging.Logger;
-import org.keycloak.Config.Scope;
-import org.keycloak.events.EventListenerProvider;
-import org.keycloak.events.EventListenerProviderFactory;
-import org.keycloak.models.KeycloakSession;
-import org.keycloak.models.KeycloakSessionFactory;
-
-import io.micrometer.core.instrument.MeterRegistry;
-
-/**
- * Factory for {@link MicrometerEventListener}, uses {@link MeterRegistry} from CDI.
- *
- * @author Stephan Schnabel
- */
-public class MicrometerEventListenerFactory implements EventListenerProviderFactory {
-
-	private static final Logger log = Logger.getLogger(MicrometerEventListener.class);
-	private MeterRegistry registry;
-	private boolean replace;
-
-	@Override
-	public String getId() {
-		return "metrics-listener";
-	}
-
-	@Override
-	public void init(Scope config) {
-		replace = "true".equals(System.getenv("KC_METRICS_EVENT_REPLACE_IDS"));
-		log.info(replace ? "Configured with model names." : "Configured with model ids.");
-	}
-
-	@Override
-	public void postInit(KeycloakSessionFactory factory) {
-		registry = CDI.current().select(MeterRegistry.class).get();
-	}
-
-	@Override
-	public EventListenerProvider create(KeycloakSession session) {
-		return new MicrometerEventListener(registry, session, replace);
-	}
-
-	@Override
-	public void close() {}
-}
--- a/src/main/java/io/kokuwa/keycloak/metrics/event/MetricsEventListener.java
+++ b/src/main/java/io/kokuwa/keycloak/metrics/event/MetricsEventListener.java
@ -1,49 +1,49 @@
-package io.kokuwa.keycloak.metrics;
+package io.kokuwa.keycloak.metrics.event;

+import java.util.Objects;
 import java.util.Optional;

 import org.jboss.logging.Logger;
 import org.keycloak.events.Event;
 import org.keycloak.events.EventListenerProvider;
 import org.keycloak.events.admin.AdminEvent;
+import org.keycloak.models.ClientModel;
 import org.keycloak.models.KeycloakContext;
 import org.keycloak.models.KeycloakSession;
 import org.keycloak.models.RealmModel;

-import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.core.instrument.Metrics;

 /**
 * Listener for {@link Event} and {@link AdminEvent}.
 *
 * @author Stephan Schnabel
 */
-public class MicrometerEventListener implements EventListenerProvider, AutoCloseable {
+public class MetricsEventListener implements EventListenerProvider, AutoCloseable {

-	private static final Logger log = Logger.getLogger(MicrometerEventListener.class);
-	private final MeterRegistry registry;
+	private static final Logger log = Logger.getLogger(MetricsEventListener.class);
+	private final boolean replaceIds;
 	private final KeycloakSession session;
-	private final boolean replace;

-	MicrometerEventListener(MeterRegistry registry, KeycloakSession session, boolean replaceId) {
-		this.registry = registry;
+	MetricsEventListener(boolean replaceIds, KeycloakSession session) {
+		this.replaceIds = replaceIds;
 		this.session = session;
-		this.replace = replaceId;
 	}

 	@Override
 	public void onEvent(Event event) {
-		registry.counter("keycloak_event_user",
-				"realm", toBlank(replace ? getRealmName(event.getRealmId()) : event.getRealmId()),
+		Metrics.counter("keycloak_event_user",
+				"realm", toBlank(replaceIds ? getRealmName(event.getRealmId()) : event.getRealmId()),
 				"type", toBlank(event.getType()),
-				"client", toBlank(event.getClientId()),
+				"client", getClientId(event.getClientId()),
 				"error", toBlank(event.getError()))
 				.increment();
 	}

 	@Override
 	public void onEvent(AdminEvent event, boolean includeRepresentation) {
-		registry.counter("keycloak_event_admin",
-				"realm", toBlank(replace ? getRealmName(event.getRealmId()) : event.getRealmId()),
+		Metrics.counter("keycloak_event_admin",
+				"realm", toBlank(replaceIds ? getRealmName(event.getRealmId()) : event.getRealmId()),
 				"resource", toBlank(event.getResourceType()),
 				"operation", toBlank(event.getOperationType()),
 				"error", toBlank(event.getError()))
@ -67,6 +67,17 @@ public class MicrometerEventListener implements EventListenerProvider, AutoClose
 				});
 	}

+	private String getClientId(String clientId) {
+		return Optional.ofNullable(session.getContext())
+				.map(KeycloakContext::getClient)
+				.filter(model -> Objects.equals(model.getClientId(), clientId))
+				.map(ClientModel::getClientId)
+				.orElseGet(() -> {
+					log.tracev("Client for id {0} is unknown", clientId);
+					return "UNKNOWN";
+				});
+	}
+
 	private String toBlank(Object value) {
 		return value == null ? "" : value.toString();
 	}
--- a/src/main/java/io/kokuwa/keycloak/metrics/event/MetricsEventListenerFactory.java
+++ b/src/main/java/io/kokuwa/keycloak/metrics/event/MetricsEventListenerFactory.java
@ -0,0 +1,41 @@
+package io.kokuwa.keycloak.metrics.event;
+
+import org.jboss.logging.Logger;
+import org.keycloak.Config.Scope;
+import org.keycloak.events.EventListenerProvider;
+import org.keycloak.events.EventListenerProviderFactory;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.KeycloakSessionFactory;
+
+/**
+ * Factory for {@link MetricsEventListener}.
+ *
+ * @author Stephan Schnabel
+ */
+public class MetricsEventListenerFactory implements EventListenerProviderFactory {
+
+	private static final Logger log = Logger.getLogger(MetricsEventListenerFactory.class);
+	private boolean replaceIds;
+
+	@Override
+	public String getId() {
+		return "metrics-listener";
+	}
+
+	@Override
+	public void init(Scope config) {
+		replaceIds = "true".equals(System.getenv().getOrDefault("KC_METRICS_EVENT_REPLACE_IDS", "true"));
+		log.info(replaceIds ? "Configured with model names." : "Configured with model ids.");
+	}
+
+	@Override
+	public void postInit(KeycloakSessionFactory factory) {}
+
+	@Override
+	public EventListenerProvider create(KeycloakSession session) {
+		return new MetricsEventListener(replaceIds, session);
+	}
+
+	@Override
+	public void close() {}
+}
--- a/src/main/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsFactory.java
+++ b/src/main/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsFactory.java
@ -0,0 +1,10 @@
+package io.kokuwa.keycloak.metrics.stats;
+
+import org.keycloak.provider.ProviderFactory;
+
+/**
+ * Factory for Keycloak metrics.
+ *
+ * @author Stephan Schnabel
+ */
+public interface MetricsStatsFactory extends ProviderFactory<MetricsStatsTask> {}
--- a/src/main/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsFactoryImpl.java
+++ b/src/main/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsFactoryImpl.java
@ -0,0 +1,71 @@
+package io.kokuwa.keycloak.metrics.stats;
+
+import java.time.Duration;
+import java.util.Optional;
+
+import org.jboss.logging.Logger;
+import org.keycloak.Config.Scope;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.KeycloakSessionFactory;
+import org.keycloak.models.utils.KeycloakModelUtils;
+import org.keycloak.timer.TimerProvider;
+
+/**
+ * Implementation of {@link MetricsStatsFactory}.
+ *
+ * @author Stephan Schnabel
+ */
+public class MetricsStatsFactoryImpl implements MetricsStatsFactory {
+
+	private static final Logger log = Logger.getLogger(MetricsStatsFactory.class);
+
+	@Override
+	public String getId() {
+		return "default";
+	}
+
+	@Override
+	public void init(Scope config) {}
+
+	@Override
+	public void postInit(KeycloakSessionFactory factory) {
+
+		if (!"true".equals(getenv("KC_METRICS_STATS_ENABLED"))) {
+			log.infov("Keycloak stats not enabled.");
+			return;
+		}
+
+		var intervalDuration = Optional
+				.ofNullable(getenv("KC_METRICS_STATS_INTERVAL"))
+				.map(Duration::parse)
+				.orElse(Duration.ofSeconds(60));
+		var infoThreshold = Optional
+				.ofNullable(getenv("KC_METRICS_STATS_INFO_THRESHOLD"))
+				.map(Duration::parse)
+				.orElse(Duration.ofMillis(Double.valueOf(intervalDuration.toMillis() * 0.5).longValue()));
+		var warnThreshold = Optional
+				.ofNullable(getenv("KC_METRICS_STATS_WARN_THRESHOLD"))
+				.map(Duration::parse)
+				.orElse(Duration.ofMillis(Double.valueOf(intervalDuration.toMillis() * 0.75).longValue()));
+		log.infov("Keycloak stats enabled with interval of {0} and info/warn after {1}/{2}.",
+				intervalDuration, infoThreshold, warnThreshold);
+
+		var interval = intervalDuration.toMillis();
+		var task = new MetricsStatsTask(intervalDuration, infoThreshold, warnThreshold);
+		KeycloakModelUtils.runJobInTransaction(factory, session -> session
+				.getProvider(TimerProvider.class)
+				.scheduleTask(task, interval, "metrics"));
+	}
+
+	@Override
+	public MetricsStatsTask create(KeycloakSession session) {
+		return null;
+	}
+
+	@Override
+	public void close() {}
+
+	String getenv(String key) {
+		return System.getenv().get(key);
+	}
+}
--- a/src/main/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsSpi.java
+++ b/src/main/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsSpi.java
@ -0,0 +1,34 @@
+package io.kokuwa.keycloak.metrics.stats;
+
+import org.keycloak.provider.Provider;
+import org.keycloak.provider.ProviderFactory;
+import org.keycloak.provider.Spi;
+
+/**
+ * SPI for Keycloak metrics.
+ *
+ * @author Stephan Schnabel
+ */
+public class MetricsStatsSpi implements Spi {
+
+	@Override
+	public boolean isInternal() {
+		return false;
+	}
+
+	@Override
+	public String getName() {
+		return "metrics";
+	}
+
+	@Override
+	public Class<? extends Provider> getProviderClass() {
+		return MetricsStatsTask.class;
+	}
+
+	@Override
+	public Class<? extends ProviderFactory<? extends Provider>> getProviderFactoryClass() {
+		// this must be an interface, otherwise spi will be silenty ignored
+		return MetricsStatsFactory.class;
+	}
+}
--- a/src/main/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsTask.java
+++ b/src/main/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsTask.java
@ -0,0 +1,92 @@
+package io.kokuwa.keycloak.metrics.stats;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.jboss.logging.Logger;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.provider.Provider;
+import org.keycloak.timer.ScheduledTask;
+
+import io.micrometer.core.instrument.Metrics;
+import io.micrometer.core.instrument.Tag;
+
+/**
+ * Keycloak metrics.
+ *
+ * @author Stephan Schnabel
+ */
+public class MetricsStatsTask implements Provider, ScheduledTask {
+
+	private static final Logger log = Logger.getLogger(MetricsStatsTask.class);
+	private static final Map<String, AtomicLong> values = new HashMap<>();
+	private final Duration interval;
+	private final Duration infoThreshold;
+	private final Duration warnThreshold;
+
+	MetricsStatsTask(Duration interval, Duration infoThreshold, Duration warnThreshold) {
+		this.interval = interval;
+		this.infoThreshold = infoThreshold;
+		this.warnThreshold = warnThreshold;
+	}
+
+	@Override
+	public void run(KeycloakSession session) {
+		log.tracev("Triggered metrics stats task.");
+		var start = Instant.now();
+
+		try {
+			scrape(session);
+		} catch (org.hibernate.exception.SQLGrammarException e) {
+			log.infov("Metrics status task skipped, database not ready.");
+			return;
+		} catch (Exception e) {
+			log.errorv(e, "Failed to scrape stats.");
+			return;
+		}
+
+		var duration = Duration.between(start, Instant.now());
+		if (duration.compareTo(interval) > 0) {
+			log.errorv("Finished scrapping keycloak stats in {0}, consider to increase interval.", duration);
+		} else if (duration.compareTo(warnThreshold) > 0) {
+			log.warnv("Finished scrapping keycloak stats in {0}, consider to increase interval.", duration);
+		} else if (duration.compareTo(infoThreshold) > 0) {
+			log.infov("Finished scrapping keycloak stats in {0}.", duration);
+		} else {
+			log.debugv("Finished scrapping keycloak stats in {0}.", duration);
+		}
+	}
+
+	@Override
+	public void close() {}
+
+	private void scrape(KeycloakSession session) {
+		session.realms().getRealmsStream().forEach(realm -> {
+			session.getContext().setRealm(realm);
+			log.tracev("Scrape for realm {0}.", realm.getName());
+			var tagRealm = Tag.of("realm", realm.getName());
+			gauge("keycloak_users", Set.of(tagRealm), session.users().getUsersCount(realm), true);
+			gauge("keycloak_clients", Set.of(tagRealm), session.clients().getClientsCount(realm), true);
+			var sessions = session.sessions();
+			var activeSessions = sessions.getActiveClientSessionStats(realm, false);
+			realm.getClientsStream().forEach(client -> {
+				var tags = Set.of(tagRealm, Tag.of("client", client.getClientId()));
+				gauge("keycloak_offline_sessions", tags, sessions.getOfflineSessionsCount(realm, client), false);
+				gauge("keycloak_active_user_sessions", tags, sessions.getActiveUserSessions(realm, client), false);
+				gauge("keycloak_active_client_sessions", tags, activeSessions.getOrDefault(client.getId(), 0L), false);
+			});
+		});
+	}
+
+	private void gauge(String name, Set<Tag> tags, long value, boolean force) {
+		var key = name + tags;
+		if (!force && value == 0 && !values.containsKey(key)) {
+			return;
+		}
+		values.computeIfAbsent(key, s -> Metrics.gauge(name, tags, new AtomicLong())).set(value);
+	}
+}
--- a/src/main/resources/META-INF/services/io.kokuwa.keycloak.metrics.stats.MetricsStatsFactory
+++ b/src/main/resources/META-INF/services/io.kokuwa.keycloak.metrics.stats.MetricsStatsFactory
@ -0,0 +1 @@
+io.kokuwa.keycloak.metrics.stats.MetricsStatsFactoryImpl
--- a/src/main/resources/META-INF/services/org.keycloak.events.EventListenerProviderFactory
+++ b/src/main/resources/META-INF/services/org.keycloak.events.EventListenerProviderFactory
@ -1 +1 @@
-io.kokuwa.keycloak.metrics.MicrometerEventListenerFactory
+io.kokuwa.keycloak.metrics.event.MetricsEventListenerFactory
--- a/src/main/resources/META-INF/services/org.keycloak.provider.Spi
+++ b/src/main/resources/META-INF/services/org.keycloak.provider.Spi
@ -0,0 +1 @@
+io.kokuwa.keycloak.metrics.stats.MetricsStatsSpi
--- a/src/test/java/io/kokuwa/keycloak/metrics/KeycloakIT.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/KeycloakIT.java
@ -1,11 +1,16 @@
 package io.kokuwa.keycloak.metrics;

 import static org.junit.jupiter.api.Assertions.assertAll;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;

+import java.time.Instant;
 import java.util.UUID;
+import java.util.function.Supplier;
+
+import jakarta.ws.rs.NotAuthorizedException;

 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@ -14,7 +19,7 @@ import org.keycloak.events.EventType;

 import io.kokuwa.keycloak.metrics.junit.KeycloakClient;
 import io.kokuwa.keycloak.metrics.junit.KeycloakExtension;
-import io.kokuwa.keycloak.metrics.prometheus.Prometheus;
+import io.kokuwa.keycloak.metrics.junit.Prometheus;

 /**
 * Integration tests with Keycloak.
@ -28,22 +33,25 @@ public class KeycloakIT {
 	@Test
 	void loginAndAttempts(KeycloakClient keycloak, Prometheus prometheus) {

-		var clientId1 = UUID.randomUUID().toString();
-		var realmName1 = UUID.randomUUID().toString();
+		var realmName1 = "loginAndAttempts_1";
+		var clientId1 = realmName1 + "_client_1";
 		var username1 = UUID.randomUUID().toString();
 		var password1 = UUID.randomUUID().toString();
 		keycloak.createRealm(realmName1);
 		keycloak.createClient(realmName1, clientId1);
 		keycloak.createUser(realmName1, username1, password1);

-		var clientId2 = UUID.randomUUID().toString();
-		var realmName2 = UUID.randomUUID().toString();
+		var realmName2 = "loginAndAttempts_2";
+		var clientId2 = realmName2 + "_client_2";
 		var username2 = UUID.randomUUID().toString();
 		var password2 = UUID.randomUUID().toString();
 		keycloak.createRealm(realmName2);
 		keycloak.createClient(realmName2, clientId2);
 		keycloak.createUser(realmName2, username2, password2);

+		var clientId3 = realmName2 + "_" + UUID.randomUUID();
+		var clientId4 = realmName2 + "_" + UUID.randomUUID();
+
 		prometheus.scrap();
 		var loginBefore = prometheus.userEvent(EventType.LOGIN);
 		var loginBefore1 = prometheus.userEvent(EventType.LOGIN, realmName1, clientId1);
@ -51,11 +59,14 @@ public class KeycloakIT {
 		var loginErrorBefore = prometheus.userEvent(EventType.LOGIN_ERROR);
 		var loginErrorBefore1 = prometheus.userEvent(EventType.LOGIN_ERROR, realmName1, clientId1);
 		var loginErrorBefore2 = prometheus.userEvent(EventType.LOGIN_ERROR, realmName2, clientId2);
+		var loginErrorBeforeUNKNOWN = prometheus.userEvent(EventType.LOGIN_ERROR, realmName2, "UNKNOWN");

-		assertTrue(keycloak.login(clientId1, realmName1, username1, password1));
-		assertTrue(keycloak.login(clientId1, realmName1, username1, password1));
-		assertTrue(keycloak.login(clientId2, realmName2, username2, password2));
-		assertFalse(keycloak.login(clientId2, realmName2, username2, "nope"));
+		assertDoesNotThrow(() -> keycloak.login(clientId1, realmName1, username1, password1));
+		assertDoesNotThrow(() -> keycloak.login(clientId1, realmName1, username1, password1));
+		assertDoesNotThrow(() -> keycloak.login(clientId2, realmName2, username2, password2));
+		assertThrows(NotAuthorizedException.class, () -> keycloak.login(clientId3, realmName2, "nope", "nö"));
+		assertThrows(NotAuthorizedException.class, () -> keycloak.login(clientId4, realmName2, "foo", "bar"));
+		assertThrows(NotAuthorizedException.class, () -> keycloak.login(clientId2, realmName2, username2, "nope"));

 		prometheus.scrap();
 		var loginAfter = prometheus.userEvent(EventType.LOGIN);
@ -64,13 +75,56 @@ public class KeycloakIT {
 		var loginErrorAfter = prometheus.userEvent(EventType.LOGIN_ERROR);
 		var loginErrorAfter1 = prometheus.userEvent(EventType.LOGIN_ERROR, realmName1, clientId1);
 		var loginErrorAfter2 = prometheus.userEvent(EventType.LOGIN_ERROR, realmName2, clientId2);
+		var loginErrorAfter3 = prometheus.userEvent(EventType.LOGIN_ERROR, realmName2, clientId3);
+		var loginErrorAfter4 = prometheus.userEvent(EventType.LOGIN_ERROR, realmName2, clientId4);
+		var loginErrorAfterUNKNOWN = prometheus.userEvent(EventType.LOGIN_ERROR, realmName2, "UNKNOWN");

 		assertAll("prometheus",
 				() -> assertEquals(loginBefore + 3, loginAfter, "login success total"),
 				() -> assertEquals(loginBefore1 + 2, loginAfter1, "login success #1"),
 				() -> assertEquals(loginBefore2 + 1, loginAfter2, "login success #2"),
-				() -> assertEquals(loginErrorBefore + 1, loginErrorAfter, "login failure total"),
+				() -> assertEquals(loginErrorBefore + 3, loginErrorAfter, "login failure total"),
 				() -> assertEquals(loginErrorBefore1 + 0, loginErrorAfter1, "login failure #1"),
-				() -> assertEquals(loginErrorBefore2 + 1, loginErrorAfter2, "login failure #2"));
+				() -> assertEquals(loginErrorBefore2 + 1, loginErrorAfter2, "login failure #2"),
+				() -> assertEquals(0, loginErrorAfter3, "login failure #3"),
+				() -> assertEquals(0, loginErrorAfter4, "login failure #4"),
+				() -> assertEquals(loginErrorBeforeUNKNOWN + 2, loginErrorAfterUNKNOWN, "login failure UNKNOWN"));
+	}
+
+	@DisplayName("user count")
+	@Test
+	void userCount(KeycloakClient keycloak, Prometheus prometheus) {
+
+		var realmName1 = "userCount_1";
+		var realmName2 = "userCount_2";
+		var username = UUID.randomUUID().toString();
+
+		keycloak.createRealm(realmName1);
+		keycloak.createRealm(realmName2);
+
+		await(() -> prometheus.userCount(realmName1) == 0, prometheus, "realm 1 not found");
+		await(() -> prometheus.userCount(realmName2) == 0, prometheus, "realm 2 not found");
+
+		keycloak.createUser(realmName1, username, UUID.randomUUID().toString());
+		keycloak.createUser(realmName1, UUID.randomUUID().toString(), UUID.randomUUID().toString());
+		keycloak.createUser(realmName1, UUID.randomUUID().toString(), UUID.randomUUID().toString());
+		keycloak.createUser(realmName2, UUID.randomUUID().toString(), UUID.randomUUID().toString());
+
+		await(() -> prometheus.userCount(realmName1) == 3, prometheus, "realm 1 shoud have 3 users");
+		await(() -> prometheus.userCount(realmName2) == 1, prometheus, "realm 2 shoud have 1 users");
+
+		keycloak.deleteUser(realmName1, username);
+
+		await(() -> prometheus.userCount(realmName1) == 2, prometheus, "realm 1 shoud have 2 users after deletion");
+		await(() -> prometheus.userCount(realmName2) == 1, prometheus, "realm 2 shoud have 1 users");
+	}
+
+	void await(Supplier<Boolean> check, Prometheus prometheus, String message) {
+		var end = Instant.now().plusSeconds(10);
+		while (Instant.now().isBefore(end) && !check.get()) {
+			assertDoesNotThrow(() -> Thread.sleep(1000));
+			prometheus.scrap();
+		}
+		assertTrue(check.get(), message);
 	}
 }
--- a/src/test/java/io/kokuwa/keycloak/metrics/event/MetricsEventListenerTest.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/event/MetricsEventListenerTest.java
@ -1,46 +1,35 @@
-package io.kokuwa.keycloak.metrics;
+package io.kokuwa.keycloak.metrics.event;

 import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.anyString;
-import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;

-import java.util.Map;
-import java.util.TreeMap;
 import java.util.UUID;
-import java.util.stream.Collectors;
-import java.util.stream.IntStream;

-import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
 import org.keycloak.events.Event;
 import org.keycloak.events.EventType;
 import org.keycloak.events.admin.AdminEvent;
 import org.keycloak.events.admin.OperationType;
 import org.keycloak.events.admin.ResourceType;
+import org.keycloak.models.ClientModel;
 import org.keycloak.models.KeycloakContext;
 import org.keycloak.models.KeycloakSession;
 import org.keycloak.models.RealmModel;
 import org.keycloak.models.RealmProvider;
-import org.mockito.ArgumentCaptor;
-import org.mockito.Captor;
 import org.mockito.Mock;
-import org.mockito.junit.jupiter.MockitoExtension;

-import io.micrometer.core.instrument.Counter;
-import io.micrometer.core.instrument.MeterRegistry;
+import io.kokuwa.keycloak.metrics.junit.AbstractMockitoTest;
+import io.micrometer.core.instrument.Metrics;

 /**
- * Test for {@link MicrometerEventListener} with Mockito.
+ * Test for {@link MetricsEventListener} with Mockito.
 *
 * @author Stephan Schnabel
 */
-@ExtendWith(MockitoExtension.class)
-public class MicrometerEventListenerTest {
+@DisplayName("events: listener")
+public class MetricsEventListenerTest extends AbstractMockitoTest {

 	@Mock
 	KeycloakSession session;
@ -49,20 +38,9 @@ public class MicrometerEventListenerTest {
 	@Mock
 	RealmProvider realmProvider;
 	@Mock
+	ClientModel clientModel;
+	@Mock
 	KeycloakContext context;
-	@Mock
-	MeterRegistry registry;
-	@Mock
-	Counter counter;
-	@Captor
-	ArgumentCaptor<String> metricCaptor;
-	@Captor
-	ArgumentCaptor<String[]> tagsCaptor;
-
-	@BeforeEach
-	void setup() {
-		when(registry.counter(metricCaptor.capture(), tagsCaptor.capture())).thenReturn(counter);
-	}

 	@DisplayName("onEvent(true)")
 	@Nested
@ -79,8 +57,10 @@ public class MicrometerEventListenerTest {

 			when(session.getContext()).thenReturn(context);
 			when(context.getRealm()).thenReturn(realmModel);
+			when(context.getClient()).thenReturn(clientModel);
 			when(realmModel.getId()).thenReturn(realmId);
 			when(realmModel.getName()).thenReturn(realmName);
+			when(clientModel.getClientId()).thenReturn(clientId);

 			listener(true).onEvent(toEvent(realmId, clientId, type, null));
 			assertEvent(realmName, clientId, type.toString(), "");
@ -98,8 +78,10 @@ public class MicrometerEventListenerTest {

 			when(session.getContext()).thenReturn(context);
 			when(context.getRealm()).thenReturn(realmModel);
+			when(context.getClient()).thenReturn(clientModel);
 			when(realmModel.getId()).thenReturn(realmId);
 			when(realmModel.getName()).thenReturn(realmName);
+			when(clientModel.getClientId()).thenReturn(clientId);

 			listener(true).onEvent(toEvent(realmId, clientId, type, error));
 			assertEvent(realmName, clientId, type.toString(), error);
@ -116,7 +98,7 @@ public class MicrometerEventListenerTest {
 			when(realmModel.getName()).thenReturn(realmName);

 			listener(true).onEvent(toEvent(null, null, null, null));
-			assertEvent(realmName, "", "", "");
+			assertEvent(realmName, "UNKNOWN", "", "");
 		}

 		@DisplayName("replace(true) - context is null")
@ -133,7 +115,7 @@ public class MicrometerEventListenerTest {
 			when(realmModel.getName()).thenReturn(realmName);

 			listener(true).onEvent(toEvent(realmId, clientId, type, null));
-			assertEvent(realmName, clientId, type.toString(), "");
+			assertEvent(realmName, "UNKNOWN", type.toString(), "");
 		}

 		@DisplayName("replace(true) - context is empty")
@ -151,7 +133,7 @@ public class MicrometerEventListenerTest {
 			when(realmModel.getName()).thenReturn(realmName);

 			listener(true).onEvent(toEvent(realmId, clientId, type, null));
-			assertEvent(realmName, clientId, type.toString(), "");
+			assertEvent(realmName, "UNKNOWN", type.toString(), "");
 		}

 		@DisplayName("replace(true) - realmId is unknown")
@ -165,7 +147,9 @@ public class MicrometerEventListenerTest {
 			when(session.getContext()).thenReturn(context);
 			when(session.realms()).thenReturn(realmProvider);
 			when(context.getRealm()).thenReturn(realmModel);
+			when(context.getClient()).thenReturn(clientModel);
 			when(realmModel.getId()).thenReturn(UUID.randomUUID().toString());
+			when(clientModel.getClientId()).thenReturn(clientId);

 			listener(true).onEvent(toEvent(realmId, clientId, type, null));
 			assertEvent(realmId, clientId, type.toString(), "");
@ -180,7 +164,7 @@ public class MicrometerEventListenerTest {
 			var type = EventType.LOGIN;

 			listener(false).onEvent(toEvent(realmId, clientId, type, null));
-			assertEvent(realmId, clientId, type.toString(), "");
+			assertEvent(realmId, "UNKNOWN", type.toString(), "");
 		}

 		@DisplayName("replace(false) - with error")
@ -193,14 +177,14 @@ public class MicrometerEventListenerTest {
 			var error = UUID.randomUUID().toString();

 			listener(false).onEvent(toEvent(realmId, clientId, type, error));
-			assertEvent(realmId, clientId, type.toString(), error);
+			assertEvent(realmId, "UNKNOWN", type.toString(), error);
 		}

 		@DisplayName("replace(false) - all fields empty")
 		@Test
 		void notReplaceFieldsEmpty() {
 			listener(false).onEvent(toEvent(null, null, null, null));
-			assertEvent("", "", "", "");
+			assertEvent("", "UNKNOWN", "", "");
 		}

 		private Event toEvent(String realmId, String clientId, EventType type, String error) {
@ -213,11 +197,11 @@ public class MicrometerEventListenerTest {
 		}

 		private void assertEvent(String realm, String client, String type, String error) {
-			assertCounter("keycloak_event_user", Map.of(
+			assertCounter("keycloak_event_user",
 					"realm", realm,
 					"client", client,
 					"type", type,
-					"error", error));
+					"error", error);
 		}
 	}

@ -370,29 +354,25 @@ public class MicrometerEventListenerTest {
 		}

 		private void assertAdminEvent(String realm, String resource, String operation, String error) {
-			assertCounter("keycloak_event_admin", Map.of(
+			assertCounter("keycloak_event_admin",
 					"realm", realm,
 					"resource", resource,
 					"operation", operation,
-					"error", error));
+					"error", error);
 		}
 	}

-	private MicrometerEventListener listener(boolean replace) {
-		return new MicrometerEventListener(registry, session, replace);
+	private MetricsEventListener listener(boolean replace) {
+		return new MetricsEventListener(replace, session);
 	}

-	private void assertCounter(String metric, Map<String, String> tags) {
-		verify(registry).counter(anyString(), any(String[].class));
-		verify(counter).increment();
-		assertEquals(metric, metricCaptor.getValue(), "metric");
-		var expectedTags = new TreeMap<>(tags);
-		var actualTags = IntStream
-				.range(0, tagsCaptor.getValue().length / 2).mapToObj(i -> i * 2)
-				.collect(Collectors.toMap(
-						i -> tagsCaptor.getValue()[i],
-						i -> tagsCaptor.getValue()[i + 1],
-						(i, j) -> i, TreeMap::new));
-		assertEquals(expectedTags, actualTags, "tags");
+	private static void assertCounter(String metric, String... tags) {
+		var counter = Metrics.globalRegistry.counter(metric, tags);
+		assertEquals(1D, counter.count(), "micrometer.counter.count");
+		assertEquals(0, Metrics.globalRegistry
+				.getMeters().stream()
+				.filter(meter -> meter != counter)
+				.count(),
+				"other meter found");
 	}
 }
--- a/src/test/java/io/kokuwa/keycloak/metrics/junit/AbstractMockitoTest.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/junit/AbstractMockitoTest.java
@ -0,0 +1,71 @@
+package io.kokuwa.keycloak.metrics.junit;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.ClassOrderer;
+import org.junit.jupiter.api.MethodOrderer;
+import org.junit.jupiter.api.TestClassOrder;
+import org.junit.jupiter.api.TestMethodOrder;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import io.micrometer.core.instrument.Metrics;
+import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
+
+/**
+ * Mockito base class with configured logging.
+ *
+ * @author Stephan Schnabel
+ */
+@ExtendWith(MockitoExtension.class)
+@TestClassOrder(ClassOrderer.DisplayName.class)
+@TestMethodOrder(MethodOrderer.DisplayName.class)
+public abstract class AbstractMockitoTest {
+
+	private static final List<LogRecord> LOGS = new ArrayList<>();
+
+	static {
+
+		System.setProperty("org.jboss.logging.provider", "jdk");
+		System.setProperty("java.util.logging.SimpleFormatter.format", "%1$tT %4$-5s %2$s %5$s%6$s%n");
+
+		Logger.getLogger("org.junit").setLevel(Level.INFO);
+		Logger.getLogger("").setLevel(Level.ALL);
+		Logger.getLogger("").addHandler(new Handler() {
+
+			@Override
+			public void publish(LogRecord log) {
+				LOGS.add(log);
+			}
+
+			@Override
+			public void flush() {}
+
+			@Override
+			public void close() {}
+		});
+	}
+
+	@BeforeEach
+	void reset() {
+		Metrics.globalRegistry.clear();
+		Metrics.addRegistry(new SimpleMeterRegistry());
+		LOGS.clear();
+	}
+
+	public static void assertLog(Level level, String message) {
+		assertTrue(LOGS.stream()
+				.filter(l -> l.getLevel().equals(level))
+				.filter(l -> l.getMessage().equals(message))
+				.findAny().isPresent(),
+				"log with level " + level + " and message " + message + " not found");
+	}
+}
--- a/src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakClient.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakClient.java
@ -1,20 +1,33 @@
 package io.kokuwa.keycloak.metrics.junit;

+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.fail;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpRequest.BodyPublishers;
+import java.net.http.HttpResponse.BodyHandlers;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;

-import javax.ws.rs.NotAuthorizedException;
-import javax.ws.rs.core.MultivaluedHashMap;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.MultivaluedHashMap;

 import org.keycloak.OAuth2Constants;
 import org.keycloak.admin.client.Keycloak;
 import org.keycloak.admin.client.token.TokenService;
+import org.keycloak.representations.AccessTokenResponse;
 import org.keycloak.representations.idm.ClientRepresentation;
 import org.keycloak.representations.idm.CredentialRepresentation;
 import org.keycloak.representations.idm.RealmRepresentation;
 import org.keycloak.representations.idm.UserRepresentation;

+import com.fasterxml.jackson.databind.ObjectMapper;
+
 /**
 * Client for keycloak.
 *
@ -23,11 +36,18 @@ import org.keycloak.representations.idm.UserRepresentation;
 public class KeycloakClient {

 	private final Keycloak keycloak;
-	private final TokenService token;
+	private final TokenService tokenService;

-	KeycloakClient(Keycloak keycloak, TokenService token) {
+	private final ObjectMapper mapper = new ObjectMapper();
+	private final HttpClient client = HttpClient.newHttpClient();
+	private final String url;
+	private final String adminToken;
+
+	KeycloakClient(String url, Keycloak keycloak, TokenService tokenService) {
 		this.keycloak = keycloak;
-		this.token = token;
+		this.tokenService = tokenService;
+		this.url = url;
+		this.adminToken = login("admin-cli", "master", "admin", "password").getToken();
 	}

 	public void createRealm(String realmName) {
@ -45,33 +65,46 @@ public class KeycloakClient {
 		client.setClientId(clientId);
 		client.setPublicClient(true);
 		client.setDirectAccessGrantsEnabled(true);
-		keycloak.realms().realm(realmName).clients().create(client);
+		var response = keycloak.realms().realm(realmName).clients().create(client);
+		assertEquals(201, response.getStatus());
 	}

 	public void createUser(String realmName, String username, String password) {
-		var credential = new CredentialRepresentation();
-		credential.setType(CredentialRepresentation.PASSWORD);
-		credential.setValue(password);
-		credential.setTemporary(false);
-		var user = new UserRepresentation();
-		user.setEnabled(true);
-		user.setEmail(username + "@example.org");
-		user.setEmailVerified(true);
-		user.setUsername(username);
-		user.setCredentials(List.of(credential));
-		keycloak.realms().realm(realmName).users().create(user);
-	}
-
-	public boolean login(String clientId, String realmName, String username, String password) {
 		try {
-			token.grantToken(realmName, new MultivaluedHashMap<>(Map.of(
-					OAuth2Constants.CLIENT_ID, clientId,
-					OAuth2Constants.GRANT_TYPE, OAuth2Constants.PASSWORD,
-					OAuth2Constants.USERNAME, username,
-					OAuth2Constants.PASSWORD, password)));
-			return true;
-		} catch (NotAuthorizedException e) {
-			return false;
+			var response = client.send(HttpRequest.newBuilder()
+					.uri(URI.create(url + "/admin/realms/" + realmName + "/users"))
+					.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON)
+					.header(HttpHeaders.AUTHORIZATION, "Bearer " + adminToken)
+					.POST(BodyPublishers.ofString(mapper.writeValueAsString(Map.of(
+							"enabled", true,
+							"emailVerified", true,
+							"email", username + "@example.org",
+							"username", username,
+							"firstName", username,
+							"lastName", username,
+							"credentials", List.of(Map.of(
+									"type", CredentialRepresentation.PASSWORD,
+									"value", password,
+									"temporary", false))))))
+					.build(), BodyHandlers.ofString());
+			assertEquals(201, response.statusCode(), "Body: " + response.body());
+		} catch (IOException | InterruptedException e) {
+			fail("Failed to create user", e);
 		}
 	}
+
+	public void deleteUser(String realmName, String username) {
+		keycloak.realms().realm(realmName).users()
+				.searchByUsername(username, true).stream()
+				.map(UserRepresentation::getId)
+				.forEach(keycloak.realms().realm(realmName).users()::delete);
+	}
+
+	public AccessTokenResponse login(String clientId, String realmName, String username, String password) {
+		return tokenService.grantToken(realmName, new MultivaluedHashMap<>(Map.of(
+				OAuth2Constants.CLIENT_ID, clientId,
+				OAuth2Constants.GRANT_TYPE, OAuth2Constants.PASSWORD,
+				OAuth2Constants.USERNAME, username,
+				OAuth2Constants.PASSWORD, password)));
+	}
 }
--- a/src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakExtension.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakExtension.java
@ -7,7 +7,7 @@ import java.time.Duration;
 import java.util.Properties;
 import java.util.Set;

-import javax.ws.rs.client.ClientBuilder;
+import jakarta.ws.rs.client.ClientBuilder;

 import org.junit.jupiter.api.extension.BeforeAllCallback;
 import org.junit.jupiter.api.extension.ExtensionContext;
@ -15,13 +15,11 @@ import org.junit.jupiter.api.extension.ParameterContext;
 import org.junit.jupiter.api.extension.ParameterResolver;
 import org.keycloak.admin.client.Keycloak;
 import org.keycloak.admin.client.token.TokenService;
+import org.testcontainers.containers.FixedHostPortGenericContainer;
 import org.testcontainers.containers.GenericContainer;
 import org.testcontainers.containers.wait.strategy.Wait;
 import org.testcontainers.utility.MountableFile;

-import io.kokuwa.keycloak.metrics.prometheus.Prometheus;
-import io.kokuwa.keycloak.metrics.prometheus.PrometheusClient;
-
 /**
 * JUnit extension to start keycloak.
 *
@ -48,27 +46,33 @@ public class KeycloakExtension implements BeforeAllCallback, ParameterResolver {
 			throw new Exception("Failed to read properties", e);
 		}
 		var version = properties.getProperty("version");
+		var image = "quay.io/keycloak/keycloak:" + version;
 		var jar = properties.getProperty("jar");
 		var timeout = properties.getProperty("timeout");

-		// create and start container
+		// create and start container - use fixed port in ci

-		@SuppressWarnings("resource")
-		var container = new GenericContainer<>("quay.io/keycloak/keycloak:" + version)
-				.withEnv("KEYCLOAK_ADMIN", "admin")
-				.withEnv("KEYCLOAK_ADMIN_PASSWORD", "password")
-				.withEnv("KC_LOG_CONSOLE_COLOR", "true")
-				.withEnv("KC_HEALTH_ENABLED", "true")
-				.withEnv("KC_METRICS_ENABLED", "true")
-				.withEnv("KC_METRICS_EVENT_REPLACE_IDS", "true")
-				.withCopyFileToContainer(MountableFile.forHostPath(jar), "/opt/keycloak/providers/metrics.jar")
-				.withLogConsumer(out -> System.out.print(out.getUtf8String()))
-				.withExposedPorts(8080)
-				.withStartupTimeout(Duration.parse(timeout))
-				.waitingFor(Wait.forHttp("/health").forPort(8080))
-				.withCommand("start-dev");
+		@SuppressWarnings({ "resource", "deprecation" })
+		var container = (System.getenv("CI") == null
+				? new GenericContainer<>(image).withExposedPorts(8080)
+				: new FixedHostPortGenericContainer<>(image).withFixedExposedPort(8080, 8080));
 		try {
-			container.start();
+			container
+					.withEnv("KEYCLOAK_ADMIN", "admin")
+					.withEnv("KEYCLOAK_ADMIN_PASSWORD", "password")
+					.withEnv("KC_LOG_LEVEL", "io.kokuwa:trace")
+					// otherwise port 9000 will be used, with this config we can test different keycloak versions
+					.withEnv("KC_LEGACY_OBSERVABILITY_INTERFACE", "true")
+					.withEnv("KC_HEALTH_ENABLED", "true")
+					.withEnv("KC_METRICS_ENABLED", "true")
+					.withEnv("KC_METRICS_STATS_ENABLED", "true")
+					.withEnv("KC_METRICS_STATS_INTERVAL", "PT1s")
+					.withCopyFileToContainer(MountableFile.forHostPath(jar), "/opt/keycloak/providers/metrics.jar")
+					.withLogConsumer(out -> System.out.print(out.getUtf8String()))
+					.withStartupTimeout(Duration.parse(timeout))
+					.waitingFor(Wait.forHttp("/health").forPort(8080).withStartupTimeout(Duration.ofMinutes(10)))
+					.withCommand("start-dev")
+					.start();
 		} catch (RuntimeException e) {
 			throw new Exception("Failed to start keycloak", e);
 		}
@ -81,7 +85,7 @@ public class KeycloakExtension implements BeforeAllCallback, ParameterResolver {
 		var target = ClientBuilder.newClient().target(url);
 		var token = Keycloak.getClientProvider().targetProxy(target, TokenService.class);
 		prometheus = new Prometheus(Keycloak.getClientProvider().targetProxy(target, PrometheusClient.class));
-		client = new KeycloakClient(keycloak, token);
+		client = new KeycloakClient(url, keycloak, token);
 	}

 	@Override
--- a/src/test/java/io/kokuwa/keycloak/metrics/prometheus/Prometheus.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/prometheus/Prometheus.java
@ -1,4 +1,4 @@
-package io.kokuwa.keycloak.metrics.prometheus;
+package io.kokuwa.keycloak.metrics.junit;

 import java.util.HashSet;
 import java.util.Map;
@ -41,6 +41,14 @@ public class Prometheus {
 				.sum();
 	}

+	public int userCount(String realm) {
+		return state.stream()
+				.filter(metric -> Objects.equals(metric.name(), "keycloak_users"))
+				.filter(metric -> Objects.equals(metric.tags().get("realm"), realm))
+				.mapToInt(metric -> metric.value().intValue())
+				.sum();
+	}
+
 	public void scrap() {
 		state.clear();
 		Stream.of(client.scrap().split("[\\r\\n]+"))
--- a/src/test/java/io/kokuwa/keycloak/metrics/prometheus/PrometheusClient.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/prometheus/PrometheusClient.java
@ -1,9 +1,9 @@
-package io.kokuwa.keycloak.metrics.prometheus;
+package io.kokuwa.keycloak.metrics.junit;

-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.Path;
-import javax.ws.rs.core.MediaType;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.core.MediaType;

 /**
 * JAX-RS client for prometheus endpoint.
--- a/src/test/java/io/kokuwa/keycloak/metrics/prometheus/PrometheusMetric.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/prometheus/PrometheusMetric.java
@ -1,4 +1,4 @@
-package io.kokuwa.keycloak.metrics.prometheus;
+package io.kokuwa.keycloak.metrics.junit;

 import java.util.Map;

--- a/src/test/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsFactoryTest.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsFactoryTest.java
@ -0,0 +1,107 @@
+package io.kokuwa.keycloak.metrics.stats;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.time.Duration;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.platform.commons.util.ReflectionUtils;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.KeycloakSessionFactory;
+import org.keycloak.models.KeycloakTransactionManager;
+import org.keycloak.timer.TimerProvider;
+import org.mockito.ArgumentCaptor;
+import org.mockito.ArgumentMatchers;
+import org.mockito.Mock;
+import org.mockito.Spy;
+
+import io.kokuwa.keycloak.metrics.junit.AbstractMockitoTest;
+
+/**
+ * Test for {@link MetricsStatsFactory} with Mockito.
+ *
+ * @author Stephan Schnabel
+ */
+@DisplayName("metrics: factory")
+public class MetricsStatsFactoryTest extends AbstractMockitoTest {
+
+	@Spy
+	MetricsStatsFactoryImpl factory;
+	@Mock
+	KeycloakSessionFactory sessionFactory;
+	@Mock
+	KeycloakSession session;
+
+	@DisplayName("disabled")
+	@Test
+	void disabled() {
+		factory.init(null);
+		factory.postInit(sessionFactory);
+		assertNull(factory.create(session));
+		factory.close();
+	}
+
+	@DisplayName("enabled - with default values")
+	@Test
+	void enabledDefault() {
+		when(factory.getenv("KC_METRICS_STATS_ENABLED")).thenReturn("true");
+		when(factory.getenv("KC_METRICS_STATS_INTERVAL")).thenReturn(null);
+		when(factory.getenv("KC_METRICS_STATS_INFO_THRESHOLD")).thenReturn(null);
+		when(factory.getenv("KC_METRICS_STATS_WARN_THRESHOLD")).thenReturn(null);
+		assertTask(Duration.ofSeconds(60), Duration.ofSeconds(30), Duration.ofSeconds(45));
+	}
+
+	@DisplayName("enabled - with custom interval")
+	@Test
+	void enabledCustomInterval() {
+		when(factory.getenv("KC_METRICS_STATS_ENABLED")).thenReturn("true");
+		when(factory.getenv("KC_METRICS_STATS_INTERVAL")).thenReturn("PT300s");
+		when(factory.getenv("KC_METRICS_STATS_INFO_THRESHOLD")).thenReturn(null);
+		when(factory.getenv("KC_METRICS_STATS_WARN_THRESHOLD")).thenReturn(null);
+		assertTask(Duration.ofSeconds(300), Duration.ofSeconds(150), Duration.ofSeconds(225));
+	}
+
+	@DisplayName("enabled - with custom thresholds")
+	@Test
+	void enabledCustomThresholds() {
+		when(factory.getenv("KC_METRICS_STATS_ENABLED")).thenReturn("true");
+		when(factory.getenv("KC_METRICS_STATS_INTERVAL")).thenReturn(null);
+		when(factory.getenv("KC_METRICS_STATS_INFO_THRESHOLD")).thenReturn("PT40s");
+		when(factory.getenv("KC_METRICS_STATS_WARN_THRESHOLD")).thenReturn("PT50s");
+		assertTask(Duration.ofSeconds(60), Duration.ofSeconds(40), Duration.ofSeconds(50));
+	}
+
+	private void assertTask(Duration interval, Duration infoThreshold, Duration warnThreshold) {
+
+		var timerProvider = mock(TimerProvider.class);
+		when(sessionFactory.create()).thenReturn(session);
+		when(session.getProvider(TimerProvider.class)).thenReturn(timerProvider);
+		when(session.getTransactionManager()).thenReturn(mock(KeycloakTransactionManager.class));
+
+		factory.postInit(sessionFactory);
+
+		var taskCaptor = ArgumentCaptor.forClass(MetricsStatsTask.class);
+		verify(timerProvider).scheduleTask(
+				taskCaptor.capture(),
+				ArgumentMatchers.eq(interval.toMillis()),
+				ArgumentMatchers.eq("metrics"));
+		assertNotNull(taskCaptor.getValue(), "task");
+		assertField(interval, taskCaptor.getValue(), "interval");
+		assertField(infoThreshold, taskCaptor.getValue(), "infoThreshold");
+		assertField(warnThreshold, taskCaptor.getValue(), "warnThreshold");
+	}
+
+	private void assertField(Duration expected, MetricsStatsTask task, String name) {
+		assertEquals(
+				expected,
+				assertDoesNotThrow(() -> ReflectionUtils.tryToReadFieldValue(MetricsStatsTask.class, name, task).get()),
+				"field " + name + " invalid");
+	}
+}
--- a/src/test/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsSpiTest.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsSpiTest.java
@ -0,0 +1,37 @@
+package io.kokuwa.keycloak.metrics.stats;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.ServiceLoader;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import io.kokuwa.keycloak.metrics.junit.AbstractMockitoTest;
+
+/**
+ * Test for {@link MetricsStatsSpi} with Mockito.
+ *
+ * @author Stephan Schnabel
+ */
+@DisplayName("metrics: spi")
+public class MetricsStatsSpiTest extends AbstractMockitoTest {
+
+	@Test
+	void test() {
+
+		var spi = new MetricsStatsSpi();
+		assertEquals("metrics", spi.getName(), "getName()");
+		assertFalse(spi.isInternal(), "isInternal()");
+		assertNotNull(spi.getProviderClass(), "getProviderClass()");
+		assertTrue(spi.getProviderFactoryClass().isInterface(), "getProviderFactoryClass() - should be an interface");
+
+		var factory = ServiceLoader.load(spi.getProviderFactoryClass()).findFirst().orElse(null);
+		assertNotNull(factory, "failed to read factory with service loader");
+		assertEquals(MetricsStatsFactoryImpl.class, factory.getClass(), "factory.class");
+		assertEquals("default", factory.getId(), "factory.id");
+	}
+}
--- a/src/test/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsTaskTest.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/stats/MetricsStatsTaskTest.java
@ -0,0 +1,231 @@
+package io.kokuwa.keycloak.metrics.stats;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.time.Duration;
+import java.util.Map;
+import java.util.UUID;
+import java.util.logging.Level;
+import java.util.stream.Stream;
+
+import org.hibernate.exception.SQLGrammarException;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.keycloak.models.ClientModel;
+import org.keycloak.models.ClientProvider;
+import org.keycloak.models.KeycloakContext;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.RealmModel;
+import org.keycloak.models.RealmProvider;
+import org.keycloak.models.UserProvider;
+import org.keycloak.models.UserSessionProvider;
+import org.mockito.Mock;
+
+import io.kokuwa.keycloak.metrics.junit.AbstractMockitoTest;
+import io.micrometer.core.instrument.Gauge;
+import io.micrometer.core.instrument.Metrics;
+
+/**
+ * Test for {@link MetricsStatsTask} with Mockito.
+ *
+ * @author Stephan Schnabel
+ */
+@DisplayName("metrics: task")
+public class MetricsStatsTaskTest extends AbstractMockitoTest {
+
+	@Mock
+	KeycloakSession session;
+	@Mock
+	RealmProvider realmProvider;
+	@Mock
+	UserProvider userProvider;
+	@Mock
+	UserSessionProvider sessionProvider;
+	@Mock
+	ClientProvider clientProvider;
+
+	@BeforeEach
+	void setup() {
+		when(session.realms()).thenReturn(realmProvider);
+	}
+
+	@DisplayName("catch - nullpointer")
+	@Test
+	void catchNPE() {
+		when(session.realms()).thenThrow(NullPointerException.class);
+		task().run(session);
+		assertLog(Level.SEVERE, "Failed to scrape stats.");
+	}
+
+	@DisplayName("catch - database")
+	@Test
+	void catchDatabase() {
+		when(session.realms()).thenThrow(SQLGrammarException.class);
+		task().run(session);
+		assertLog(Level.INFO, "Metrics status task skipped, database not ready.");
+	}
+
+	@DisplayName("log - debug")
+	@Test
+	void logDebug() {
+		when(realmProvider.getRealmsStream()).thenReturn(Stream.of());
+		task(Duration.ofMillis(300), Duration.ofMillis(100), Duration.ofMillis(200)).run(session);
+		assertLog(Level.FINE, "Finished scrapping keycloak stats in {0}.");
+	}
+
+	@DisplayName("log - info")
+	@Test
+	void logInfo() {
+		when(realmProvider.getRealmsStream()).thenReturn(Stream.of());
+		task(Duration.ofMillis(300), Duration.ZERO, Duration.ofMillis(200)).run(session);
+		assertLog(Level.INFO, "Finished scrapping keycloak stats in {0}.");
+	}
+
+	@DisplayName("log - warn")
+	@Test
+	void logWarn() {
+		when(realmProvider.getRealmsStream()).thenReturn(Stream.of());
+		task(Duration.ofMillis(300), Duration.ofMillis(100), Duration.ZERO).run(session);
+		assertLog(Level.WARNING, "Finished scrapping keycloak stats in {0}, consider to increase interval.");
+	}
+
+	@DisplayName("log - error")
+	@Test
+	void logError() {
+		when(realmProvider.getRealmsStream()).thenReturn(Stream.of());
+		task(Duration.ZERO, Duration.ofMillis(100), Duration.ofMillis(200)).run(session);
+		assertLog(Level.SEVERE, "Finished scrapping keycloak stats in {0}, consider to increase interval.");
+	}
+
+	@DisplayName("scrape")
+	@Test
+	void scrape() {
+
+		var realm = UUID.randomUUID().toString();
+		var realmModel = mock(RealmModel.class);
+		var client1 = UUID.randomUUID().toString();
+		var client1Id = UUID.randomUUID().toString();
+		var client1Model = mock(ClientModel.class);
+		var client2 = UUID.randomUUID().toString();
+		var client2Id = UUID.randomUUID().toString();
+		var client2Model = mock(ClientModel.class);
+		when(realmModel.getName()).thenReturn(realm);
+		when(realmModel.getClientsStream()).then(i -> Stream.of(client1Model, client2Model));
+		when(client1Model.getId()).thenReturn(client1Id);
+		when(client1Model.getClientId()).thenReturn(client1);
+		when(client2Model.getId()).thenReturn(client2Id);
+		when(client2Model.getClientId()).thenReturn(client2);
+
+		when(session.clients()).thenReturn(clientProvider);
+		when(session.users()).thenReturn(userProvider);
+		when(session.sessions()).thenReturn(sessionProvider);
+		when(session.getContext()).thenReturn(mock(KeycloakContext.class));
+		when(realmProvider.getRealmsStream()).then(i -> Stream.of(realmModel));
+
+		// empty realm
+
+		when(userProvider.getUsersCount(realmModel)).thenReturn(0);
+		when(clientProvider.getClientsCount(realmModel)).thenReturn(0L);
+		when(sessionProvider.getOfflineSessionsCount(realmModel, client1Model)).thenReturn(0L);
+		when(sessionProvider.getOfflineSessionsCount(realmModel, client2Model)).thenReturn(0L);
+		when(sessionProvider.getActiveUserSessions(realmModel, client1Model)).thenReturn(0L);
+		when(sessionProvider.getActiveUserSessions(realmModel, client2Model)).thenReturn(0L);
+		when(sessionProvider.getActiveClientSessionStats(realmModel, false)).thenReturn(Map.of());
+		task().run(session);
+		assertUsersCount(realmModel, 0);
+		assertClientsCount(realmModel, 0);
+		assertOfflineSessions(realmModel, client1Model, null);
+		assertOfflineSessions(realmModel, client2Model, null);
+		assertActiveUserSessions(realmModel, client1Model, null);
+		assertActiveUserSessions(realmModel, client2Model, null);
+		assertActiveClientSessions(realmModel, client1Model, null);
+		assertActiveClientSessions(realmModel, client2Model, null);
+
+		// initial values
+
+		when(userProvider.getUsersCount(realmModel)).thenReturn(10);
+		when(clientProvider.getClientsCount(realmModel)).thenReturn(20L);
+		when(sessionProvider.getOfflineSessionsCount(realmModel, client1Model)).thenReturn(0L);
+		when(sessionProvider.getOfflineSessionsCount(realmModel, client2Model)).thenReturn(1L);
+		when(sessionProvider.getActiveUserSessions(realmModel, client1Model)).thenReturn(2L);
+		when(sessionProvider.getActiveUserSessions(realmModel, client2Model)).thenReturn(3L);
+		when(sessionProvider.getActiveClientSessionStats(realmModel, false))
+				.thenReturn(Map.of(client1Id, 5L, client2Id, 0L));
+		task().run(session);
+		assertUsersCount(realmModel, 10);
+		assertClientsCount(realmModel, 20);
+		assertOfflineSessions(realmModel, client1Model, null);
+		assertOfflineSessions(realmModel, client2Model, 1);
+		assertActiveUserSessions(realmModel, client1Model, 2);
+		assertActiveUserSessions(realmModel, client2Model, 3);
+		assertActiveClientSessions(realmModel, client1Model, 5);
+		assertActiveClientSessions(realmModel, client2Model, null);
+
+		// updated values
+
+		when(userProvider.getUsersCount(realmModel)).thenReturn(11);
+		when(clientProvider.getClientsCount(realmModel)).thenReturn(19L);
+		when(sessionProvider.getOfflineSessionsCount(realmModel, client1Model)).thenReturn(3L);
+		when(sessionProvider.getOfflineSessionsCount(realmModel, client2Model)).thenReturn(2L);
+		when(sessionProvider.getActiveUserSessions(realmModel, client1Model)).thenReturn(1L);
+		when(sessionProvider.getActiveUserSessions(realmModel, client2Model)).thenReturn(0L);
+		when(sessionProvider.getActiveClientSessionStats(realmModel, false))
+				.thenReturn(Map.of(client1Id, 4L, client2Id, 3L));
+		task().run(session);
+		assertUsersCount(realmModel, 11);
+		assertClientsCount(realmModel, 19);
+		assertOfflineSessions(realmModel, client1Model, 3);
+		assertOfflineSessions(realmModel, client2Model, 2);
+		assertActiveUserSessions(realmModel, client1Model, 1);
+		assertActiveUserSessions(realmModel, client2Model, 0);
+		assertActiveClientSessions(realmModel, client1Model, 4);
+		assertActiveClientSessions(realmModel, client2Model, 3);
+	}
+
+	private MetricsStatsTask task() {
+		return task(Duration.ofMillis(300), Duration.ofMillis(100), Duration.ofMillis(200));
+	}
+
+	private MetricsStatsTask task(Duration interval, Duration infoThreshold, Duration warnThreshold) {
+		return new MetricsStatsTask(interval, infoThreshold, warnThreshold);
+	}
+
+	private static void assertUsersCount(RealmModel realm, int count) {
+		assertGauge("keycloak_users", realm, null, count);
+	}
+
+	private static void assertClientsCount(RealmModel realm, int count) {
+		assertGauge("keycloak_clients", realm, null, count);
+	}
+
+	private static void assertActiveClientSessions(RealmModel realm, ClientModel client, Integer count) {
+		assertGauge("keycloak_active_client_sessions", realm, client, count);
+	}
+
+	private static void assertActiveUserSessions(RealmModel realm, ClientModel client, Integer count) {
+		assertGauge("keycloak_active_user_sessions", realm, client, count);
+	}
+
+	private static void assertOfflineSessions(RealmModel realm, ClientModel client, Integer count) {
+		assertGauge("keycloak_offline_sessions", realm, client, count);
+	}
+
+	private static void assertGauge(String name, RealmModel realm, ClientModel client, Integer count) {
+		var gauges = Metrics.globalRegistry.getMeters().stream()
+				.filter(Gauge.class::isInstance)
+				.filter(gauge -> gauge.getId().getName().equals(name))
+				.filter(gauge -> gauge.getId().getTag("realm").equals(realm.getName()))
+				.filter(gauge -> client == null || gauge.getId().getTag("client").equals(client.getClientId()))
+				.map(Gauge.class::cast)
+				.toList();
+		if (count == null) {
+			assertEquals(0, gauges.size());
+		} else {
+			assertEquals(1, gauges.size());
+			assertEquals(count.doubleValue(), gauges.get(0).value());
+		}
+	}
+}
--- a/src/test/resources/test.properties
+++ b/src/test/resources/test.properties
@ -1,3 +1,3 @@
-version=${version.org.keycloak}
+version=${version.org.keycloak.test}
 timeout=PT5m
 jar=${project.build.directory}/${project.build.finalName}.jar
				`@ -0,0 +1 @@`
				`io.kokuwa.keycloak.metrics.stats.MetricsStatsFactoryImpl`