Output type application/java is not supported in DataWeave run configuration

[javaduke]

When I'm trying to debug DataWeave scripts where output type is application/java, I get this error:

Exception in thread "Thread-1" com.mulesoft.weave.module.InvalidTargetException: Unable to create Java writer out of java.io.FileOutputStream@7f1387eb
at com.mulesoft.weave.module.JavaModule.writer(JavaModule.scala:21)
at com.mulesoft.weave.engine.Engine.implicitWriter(Engine.scala:258)
at com.mulesoft.weave.engine.Engine.execute(Engine.scala:127)
at com.mulesoft.weave.engine.Engine.execute(Engine.scala:108)
at com.mulesoft.weave.WeaveRunner$$anon$2$$anon$1.run(WeaveRunner.scala:80)