Add compile test step to Github Actions

.github/workflows/ant.yml

@@ -183,3 +183,31 @@ jobs:
 
       - name: Compile in container
         run: docker run --entrypoint="" -v $(pwd)/lombok.jar:/workspace/lombok.jar $IMAGE_NAME /bin/bash -c "cd classpath; ${{ matrix.tool.cmd }}"
+
+  manual-tests:
+    runs-on: ubuntu--24.04
+    needs: build
+    strategy: 
+      matrix: 
+        jdk: [8, 11, 17, 21, 23]
+        dir: [compileTests]
+      fail-fast: false
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK ${{ matrix.jdk }}
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ matrix.jdk }}
+          distribution: 'zulu'
+
+      - uses: actions/download-artifact@v4
+        with:
+          name: lombok.jar
+
+      - name: Run tests
+        working-directory: ./test/manual/${{ matrix.dir }}/
+        run: ./runTests.sh
+

test/manual/compileTests/.gitignore

@@ -0,0 +1 @@
+/out

test/manual/compileTests/runTests.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+set -e
+echo 'This will compile a selection of files in test/transform/resource/before. If the compilation works without error, lombok is working as designed.'
+
+mkdir -p out/
+
+# list of files to iterate over
+FILES="UtilityClassInner.java"
+BASE_PATH="../../../test/transform/resource/before"
+LOMBOK_JAR="../../../dist/lombok.jar"
+
+# compile all files in list
+for f in $FILES
+do
+
+  echo "Compiling $f"
+  javac --processor-path $LOMBOK_JAR -cp $LOMBOK_JAR -d out/ $BASE_PATH/$f
+done
+
+rm -rf out/