javaunixjartomcat6

Check if jar file is loaded?

I have a custom jar file in the tomcat lib/ folder. As per my knowledge, any jar file in this folder will be loaded on startup.

Is there anyway I can check if a particular jar file is loaded or not?

I'm running tomcat-6.0.35.A on unix rhel5.

Solution

  • I think I have seen which jars are open on startup in one of Tomcat log files. If not I could think about two possible alternatives:

    1. Add -verbose:class to JAVA_OPTS in Tomcat startup script. It should print classes as they're loaded by JVM (lots of output). Grep log file (or stdout) to find if classes from your jar are listed
    2. Use Linux lsof | grep jar1 command to see files opened by the Tomcat process.