Please have a look at https://github.com/karakun/OpenWebStart ... -reporting
Also it is possible to remotely debug OWS:.
1. Start the itw-settings tool in the OWS Installation directory
2. Choose Remote Debugging.
3. Check on the Activate remote Debugging
4. By default application will start with the JVM arg:-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=*:5005
I hope this helps