Listing out some of the useful Java debugging tools jinfo prints the system properties or the command line flags that were used to start the VM.   /opt/sun/jdk/java/bin/jinfo   jinfo jinfo Link: http://java.sun.com/j2se/1.5.0/docs/tooldocs/share/jinfo.html     jmap prints memory related statistics for a running VM or core file   /opt/sun/jdk/java/bin/jmap                 jmap -heap… Read More Java Debugging Tools