Get a listing of all currently loaded classes in a given JVM instance

Question

It'd be handy to know which classes are currently loaded by a given JVM instance.

Is there some way to get them through JVisualVM, for instance?

Edit: I'm aware of the solution given @ Java - Get a list of all Classes loaded in the JVM, yet I'd like to know if there's a way to do that through JVisualVM or some other tool. At the moment I'm working against a RCP application, and I'd prefer to not having to run the application through the java tool (I'm lazy, yes).

Possible duplicate of [Java - Get a list of all Classes loaded in the JVM](http://stackoverflow.com/questions/2548384/java-get-a-list-of-all-classes-loaded-in-the-jvm) — Greesh Kumar, Aug 23 '16 at 12:14
Try YourKit Profiler: https://www.yourkit.com/docs/java/help/classloading.jsp . There is a trial version that you can give a shot. — JohnTortugo, Dec 28 '22 at 16:39

score 0 · Answer 1 · answered May 15 '13 at 23:34

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Did you try jconsole?

Jconsole should be able to display list of loaded classes, see jConsole Documentation.

See the Viewing Overview Information section, the screenshot shows number of loaded classes. Plus, you can see a tab called Classes, this is where the class loading info is.

answered May 15 '13 at 23:34

Aleš

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It seems to inform me about the class count, not which classes correspond to which classloaders. Am I wrong? – devoured elysium May 16 '13 at 07:14
Opps, you are correct. I did use see this feature somewhere though, will post an update once I find it. – Aleš May 16 '13 at 19:10

Pavel · Answer 2 · 2018-11-01T08:42:50.193

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You can do this with VisualVM:

$JAVA_HOME/bin/jvisialvm
Select your jvm app -> Sampler -> Memory -> click "Heap Dump"
Open created Heap dump -> click "Classes". Where is a search field at bottom.

Your are welcome.

edited Nov 01 '18 at 08:42

answered Oct 31 '18 at 17:17

Pavel

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Get a listing of all currently loaded classes in a given JVM instance

2 Answers2