I have a web app running under tomcat-6.0.26 with
JreMemoryLeakPreventionListener, java jdk1.6.0_18.
Using jmap -histo pid, I can watch
com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl, etc increase in number
after running my unmarshal action, followed by undeploy and redeploy. Find
Leaks in the manager also finds leaks.
The JAXBContext instance is created with a singleton that is an enum (using
Josh Block's pattern):
public enum JAXBContextMascot {
INSTANCE("com.matrixscience.xmlns.schema.mascot_search_results_2" );
private JAXBContext ctx;
JAXBContextMascot(String contextPath) {
try {
ctx =JAXBContext.newInstance(clazz);
} catch (JAXBException e) {
throw new RuntimeException(e);
}
}
public Unmarshaller createUnmarshaller(){
try {
return ctx.createUnmarshaller();
} catch (JAXBException e) {
throw new RuntimeException(e);
}
}
}
Am I doing something wrong which is causing the memory leak?
JAXBContext.newInstance() can take a ClassLoader argument. Is there some
ClassLoader I should be using that will get around this?
Any help would be appreciated.
mas
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