Fix for JLink build

Signed-off-by: PAlex404 <alessandro.parisi406@gmail.com>

demo/build.gradle

@@ -28,4 +28,5 @@ jlink {
     jpackage {
         imageOptions = ['--icon', 'src/main/resources/logo.ico']
     }
+    forceMerge('log4j-api')
 }