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Once a process is listening on port 8000, you can start debugging the "JPDA" configuration
Tomcat
Make sure you are using Java 8 in your environment, not a higher version (java -version to verify). Start debugging with catalina jpda start. There won't be any output except in the logs, but it will start listening, and then you can debug. Stop Tomcat with catalina jpda stop.
GSH
Make sure you are using Java 8 in your environment, not a higher version (java -version to verify). Get the extra Java arguments by editing the configuration and copying the -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8000 argument in the command line pane. Then start gsh with:
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