For quick analysis of the options and health of a Java VM I used the
jconsole tool (part of JDK) in the past. But that changed.
Now there is VisualVM, that not only provides information about the options and health (CPU, Memory), but also a useful overview of the threads including their state and finally easy access to profiling.
To start this tool use the command
jvisualvm instead of
jconsole and connect to the Java VM that is your object.