Itay Hudedi created GROOVY-7733:
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Summary: Can't unloaded Groovy classes - PermGen Erros
Key: GROOVY-7733
URL: https://issues.apache.org/jira/browse/GROOVY-7733
Project: Groovy
Issue Type: Bug
Components: groovy-jdk
Affects Versions: 1.0-JSR-5
Environment: linux,windows
Reporter: Itay Hudedi
Priority: Critical
I have a legacy system that is extensively using Groovy version 1.0 and
currently I can not update Groovy to an updated version. From time to time I'm
getting a PermGen error due to the fact that all the Groovy classes/scripts are
kept in memory even if no one is using them any more.
I'm trying to figure out what is the correct way to unload those classes after
I've finished using them.
I'm using the following code to create the Script object:
GroovyShell shell=new GroovyShell();
Script script = shell.parse("ANY_TEXT");
.....
And I'm trying the following code to unload the generated class:
MetaClassRegistry metaClassRegistry = MetaClassRegistry.getIntance(0);
metaClassRegistry.removeMetaClass(script.getMetaClass().getClass());
metaClassRegistry.removeMetaClass(script.getClass());
metaClassRegistry.removeMetaClass(script.getBinding().getClass());
script.setBinding(null);
script.setMetaClass(null);
script = null;
Unfortunately, this doesn't seems to work because I keep on getting a PermGen
error. How can I unloaded groovy classes and keep the PermGen size reasonable?
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