Troubleshooting Tools and Commands

Question 1

jcmd

Answer 1

Send diagnostic command requests to a running JVM

Question 2

jdb

Answer 2

Find and fix bug in Java platform programs.

Question 3

jhsdb

Answer 3

attach to a Java process or to a core dump from a crashed JVM

Question 4

jinfo: Experimental

Answer 4

generate Java configuration information for a specified Java process

Question 5

jmap: Experimental

Answer 5

Print details of a specified process.

Question 6

jstack: Experimental

Answer 6

Print java stack traces of Java threads for a specified Java process.