Switch from Maven to Gradle

.editorconfig

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+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# editorconfig.org
+
+root = true
+
+[*]
+
+# Change these settings to your own preference
+indent_style = space
+indent_size = 2
+
+# We recommend you to keep these unchanged
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.gitattributes

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+# Set the default behavior to LF, because checkstyle enforces it
+* text eol=lf
+
+*.bat eol=crlf
+
+*.jar binary
+*.jpg binary
+*.png binary
+*.ttf binary

.github/pull_request_template.md

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+
+<!--
+If this is your first time contributing to the project (or it's been a while), please consider reviewing https://github.com/Terracotta-OSS/terracotta-platform/blob/master/CONTRIBUTING.md
+-->
+
+
+This PR...
+
+Fixes issue #
+
+## Changes
+-
+
+-----------------
+## Checklist
+- [ ] tested locally
+- [ ] updated the docs
+- [ ] added appropriate test
+- [ ] signed-off on the DCO referenced in the CONTRIBUTING link below via `git commit -s` on my commits, and submit this code under terms of the Apache 2.0 license and assign copyright to this project owners
+  (If you're not using command-line, you can use a [browser extension](https://github.com/scottrigby/dco-gh-ui) )
+-----------------
+In submitting this contribution, I agree to the terms of contributing as referred to here: 
+https://github.com/Terracotta-OSS/terracotta-platform/blob/master/CONTRIBUTING.md

.github/workflows/build.yml

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+name: Build
+
+on:
+  workflow_dispatch:
+  push:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+
+  build:
+    name: "build:${{ matrix.os }}:jdk-${{ matrix.jdk }}:jvm-${{ matrix.jvm }}"
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        jdk: [8]
+        jvm: [8, 11, 17, 21]
+
+    runs-on: ${{ matrix.os }}
+
+    env:
+      SEGMENT_DOWNLOAD_TIMEOUT_MINS: 10
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: ${{ runner.os }}-gradle
+
+      - name: "Setup JDK ${{ matrix.jdk }}"
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: ${{ matrix.jdk }}
+
+      - name: "Setup JVM ${{ matrix.jvm }}"
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: ${{ matrix.jvm }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build with Gradle
+        run: ./gradlew build check -x dependencyCheckAggregate -x spotbugsMain -x spotbugsTest -x checkstyleMain -x checkstyleTest -x :management:integration-tests:test --no-daemon -PcompileVM=${{ matrix.jdk }} -PtestVM=${{ matrix.jvm }}
+
+      - name: Upload Test Results
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: junit-test-results
+          retention-days: 5
+          path: |
+            **/build/reports/
+            **/build/test-results/
+
+      - name: Publish Test Report
+        uses: mikepenz/action-junit-report@v4
+        env:
+          NODE_OPTIONS: "--max_old_space_size=4096"
+        with:
+          report_paths: "**/build/test-results/test/TEST-*.xml"
+
+  system_tests_management:
+    name: "integration-tests:management:${{ matrix.os }}:jdk-${{ matrix.jdk }}:jvm-${{ matrix.jvm }}"
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        jdk: [8]
+        jvm: [8, 11, 17, 21]
+
+    runs-on: ${{ matrix.os }}
+
+    env:
+      SEGMENT_DOWNLOAD_TIMEOUT_MINS: 10
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: ${{ runner.os }}-gradle
+
+      - name: "Setup JDK ${{ matrix.jdk }}"
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: ${{ matrix.jdk }}
+
+      - name: "Setup JVM ${{ matrix.jvm }}"
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: ${{ matrix.jvm }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build with Gradle
+        run: ./gradlew :management:integration-tests:test -x dependencyCheckAggregate -x spotbugsMain -x spotbugsTest -x checkstyleMain -x checkstyleTest --no-daemon -PcompileVM=${{ matrix.jdk }} -PtestVM=${{ matrix.jvm }}
+
+      - name: Upload Test Results
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: junit-test-results
+          retention-days: 5
+          path: |
+            **/build/reports/
+            **/build/test-results/
+
+      - name: Publish Test Report
+        uses: mikepenz/action-junit-report@v4
+        env:
+          NODE_OPTIONS: "--max_old_space_size=4096"
+        with:
+          report_paths: "**/build/test-results/test/TEST-*.xml"
+

.github/workflows/checkstyle.yml

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+name: Checkstyle
+
+on:
+  workflow_dispatch:
+  push:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  checkstyle:
+    name: "Checkstyle"
+    runs-on: ubuntu-latest
+    env:
+      SEGMENT_DOWNLOAD_TIMEOUT_MINS: 10
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: ${{ runner.os }}-gradle
+
+      - name: "Setup JDK 8"
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: 8
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Checkstyle
+        run: ./gradlew checkstyleMain checkstyleTest

.github/workflows/dependency-submission.yml

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+name: Dependency Submission
+
+on:
+  workflow_dispatch:
+  push:
+    branches: ["main", "master"]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+jobs:
+  dependency-submission:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: 17
+      - name: Generate and submit dependency graph
+        uses: gradle/actions/dependency-submission@v4

.github/workflows/spotbugs.yml

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+name: SpotBugs
+
+on:
+  workflow_dispatch:
+  push:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  spotBugs:
+    name: "SpotBugs"
+    runs-on: ubuntu-latest
+    env:
+      SEGMENT_DOWNLOAD_TIMEOUT_MINS: 10
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: ${{ runner.os }}-gradle
+
+      - name: "Setup JDK 8"
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: 8
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: SpotBugs
+        run: ./gradlew spotbugsMain spotbugsTest --no-daemon

.github/workflows/wrapper-validation.yml

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+name: "Validate Gradle Wrapper"
+
+on:
+  workflow_dispatch:
+  push:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  validation:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: gradle/actions/wrapper-validation@v4

.gitignore

@@ -1,35 +1,10 @@
-# IntelliJ exclusions
-.idea/
-*.iml
-out/
-
-# Eclipse exclusions
-.project
-.classpath/
-.classpath
-.settings/
-*.prefs
-
-# Netbeans exclusions
-nb-configuration.xml
-nbactions.xml
-.nb-gradle/
-.nb-gradle-properties
-
-# MacOS exclusions
-.DS_Store
-
-# Maven exclusions
-target/
-dependency-reduced-pom.xml
-.fbExcludeFilterFile
-
-.checkstyle
-*~
-
-/.gradletasknamecache
-/classes
-/healthchecker-entity/api/nbproject/
-
-# vim
-*.swp
+# Gradle
+.gradle/
+**/build/
+!**/src/**/build/
+
+# Vscode
+/.vscode/*
+**/bin/main/**
+**/bin/test/**
+**/bin/xml/**

.gitmodules

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+[submodule "build-logic/terracotta-gradle-plugins"]
+	path = build-logic/terracotta-gradle-plugins
+	url = https://github.com/Terracotta-OSS/terracotta-gradle-plugins.git