How to enable DEBUG logging for jconsole or jvisualvm

Solution Verified - Updated -

Environment

Red Hat JBoss Enterprise Application Platform

Issue

  • How to enable DEBUG logging for jconsole
  • How to enable DEBUG logging for jvisualvm

Resolution

Create a Java Util Logging (JUL) logging properties file for jconsole

Example logging-jconsole.properties :

handlers=java.util.logging.ConsoleHandler

.level=INFO
java.util.logging.ConsoleHandler.level=FINEST
java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
javax.management.level=FINEST
javax.management.remote.level=FINEST

jconsole.sh -J-Djava.util.logging.config.file=logging-jconsole.properties

For Visual VM, the same logging properties can be used and it can be enabled similarly:

jvisualvm -J-Djava.util.logging.config.file=logging-jconsole.properties

Windows Note
Note there is a bug where the jconsole.bat is not passing the command line arguments to jconsole.exe
See this article for the workaround / fix : jconsole.bat is not passing command line arguments down to jconsole.exe in JBoss EAP 6.4

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