different headless approach

Author: pahjbo

.github/workflows/site.yml

@@ -37,17 +37,15 @@ jobs:
           echo "$JAVA_HOME/bin/java -Djava.awt.headless=true -jar $THISDIR/bin/plantuml.jar $@" >plantuml
           chmod +x plantuml
         working-directory: ./bin
-      - name: try plantuml
-        run: |
-          echo "@startuml\nversion\n@enduml"> test.puml
-          plantuml test.puml
-      
+
 
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v4
 
-      - name: Test with Gradle Wrapper
-        run: ./gradlew doSite
+      - name: create site
+        uses: coactions/setup-xvfb@v1
+        with:
+          run: ./gradlew doSite