Feature/format

.github/workflows/java-gradle-checkstyle.yml

@@ -0,0 +1,59 @@
+# yamllint disable rule:line-length
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-gradle
+# yamllint enable rule:line-length
+---
+
+name: Java CI Tests with Gradle
+
+on: # yamllint disable-line rule:truthy
+  push:
+    branches: ["main"]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: ["main"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  gradle:
+    name: Java Gradle CI Test
+
+    strategy:
+      matrix:
+        os: ["windows-2022", "ubuntu-24.04", "macos-14"]
+        java: ['22', '23', '24']
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: temurin
+
+      - name: Tool test
+        run: |
+          echo "Java version: ${{ matrix.java }}"
+          java -version
+          echo "OS: ${{ matrix.os }}"
+          echo "Gradle version:"
+          ./gradlew --version
+      - name: Validate Gradle wrapper
+        uses: gradle/actions/wrapper-validation@v4
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Clean
+        run: ./gradlew --console=verbose clean
+
+      - name: Lint
+        run: ./gradlew --console=verbose checkstyleMain checkstyleTest

.github/workflows/java-gradle-coverage.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          java-version: 22
+          java-version: 24
           # Alternative distribution options are available
           distribution: temurin
       - name: Validate Gradle wrapper

.github/workflows/java-gradle.yml

@@ -55,8 +55,5 @@ jobs:
       - name: Clean
         run: ./gradlew --console=verbose clean
 
-      - name: Lint
-        run: ./gradlew --console=verbose checkstyleMain checkstyleTest
-
       - name: Run tests
         run: ./gradlew --console=verbose test -x checkstyleMain checkstyleTest

Makefile

@@ -60,6 +60,12 @@ lint: lint/markdown lint/yaml test/styling test/static
 test/styling: dependencies
 	$(GRADLE) --console=verbose clean checkstyleMain checkstyleTest
 
+
+format/sources:
+	$(GRADLE) --console=verbose rewriteRun
+
+format: format/sources
+
 test/static: dependencies
 
 test: env

algorithm-exercises-java/build.gradle

@@ -10,6 +10,7 @@ plugins {
     // Apply the application plugin to add support for building a CLI application in Java.
     id 'application'
     id 'checkstyle'
+    id 'org.openrewrite.rewrite' version '7.6.2'
     id 'jacoco'
     id 'org.barfuin.gradle.jacocolog' version '3.1.0'
     id 'com.adarshr.test-logger' version '4.0.0'
@@ -35,6 +36,7 @@ dependencies {
     implementation group: 'com.fasterxml.jackson.core', name: 'jackson-annotations', version: '2.19.0'
     implementation group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.19.0'
 
+    rewrite 'org.openrewrite.recipe:rewrite-static-analysis:latest.release'
 }
 
 application {
@@ -55,6 +57,12 @@ checkstyle {
     showViolations = true
 }
 
+// Reference: https://docs.openrewrite.org/running-recipes/popular-recipe-guides/automatically-fix-checkstyle-violations
+rewrite {
+    activeRecipe 'org.openrewrite.staticanalysis.CodeCleanup'
+    checkstyleConfigFile = file("checkstyle.xml")
+}
+
 configurations.checkstyle {
   resolutionStrategy.capabilitiesResolution.withCapability("com.google.collections:google-collections") {
     select("com.google.guava:guava:33.4.8-jre")