Switch code style to Google's Java Code Style

.github/workflows/reformat-code.yml

@@ -0,0 +1,29 @@
+name: Reformat Code
+
+on:
+  workflow_dispatch
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  reformat-code:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: 21.0.2
+          distribution: 'temurin'
+      - uses: axel-op/googlejavaformat-action@v3
+        with:
+          args: "-r -a --skip-reflowing-long-strings --skip-javadoc-formatting"
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v7
+        with:
+          commit-message: 'Automated code reformat'
+          branch: reformat-code
+          title: 'Automated code reformat'
+          body: 'Contains the result of applying the [Google Java Format Action](https://github.com/axel-op/googlejavaformat-action?tab=readme-ov-file#google-java-format-action).'

.github/workflows/tests.yml

@@ -25,8 +25,8 @@ permissions:
   pull-requests: write
 
 jobs:
-  checkstyle:
-    name: Checkstyle
+  gjf-checkstyle:
+    name: GJF (AOSP) and Checkstyle
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source
@@ -39,6 +39,13 @@ jobs:
         with:
           java-version: 21.0.2
           distribution: 'temurin'
+      - uses: axel-op/googlejavaformat-action@v3
+        with:
+          args: "-r -a --skip-reflowing-long-strings --skip-javadoc-formatting --set-exit-if-changed"
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Run git diff on failure
+        if: failure()
+        run: git diff
       - name: Run checkstyle reporter
         uses: dbelyaev/action-checkstyle@master
         with: