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Threads Possible Cause of Memory Leak

Hi can someone identify this threads ? are these the possible causes of memory leaks ? Cause im having a permgen out of memory error when redeploying webapps overtime. thanks in advance.

池线程

线程睡眠

C3P0池线程

It is not possible to identify PermGen memory leaks only given your thread screen shots. Please follow these instructions on my blog to find any leaks. To prevent problems caused by ClassLoader leaks, add my ClassLoader Leak Prevention library to your application.

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