doc: add java options

run-tests/README.md

@@ -63,6 +63,30 @@ jobs:
     command: cargo test --all
 ```
 
+### Java (Gradle)
+
+```yaml
+- uses: https://bitfreedom.net/code/apunkt/actions/run-tests@v1
+  with:
+    setup: ./gradlew --version
+    command: ./gradlew test
+    artifacts-path: |
+      **/build/reports/tests/**
+      **/build/test-results/**/*.xml
+```
+
+### Java (Maven)
+
+```yaml
+- uses: https://bitfreedom.net/code/apunkt/actions/run-tests@v1
+  with:
+    setup: mvn --version
+    command: mvn -B test
+    artifacts-path: |
+      **/target/surefire-reports/**
+      **/target/failsafe-reports/**
+```
+
 ### Multi-line command
 
 ```yaml