StrutsSpringTestCase - Memory Leak
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Key: WW-3402
URL: https://issues.apache.org/jira/browse/WW-3402
Project: Struts 2
Issue Type: Bug
Components: Unit Tests
Affects Versions: 2.1.8
Environment: Eclipse 3.5, Linux Fedora 10.
Reporter: Carl Ballantyne
I ran into an issue with the StrutsSpringTestCase class when doing my unit
tests.
Basically the memory kept climbing until it crashed the machine.
This class is actually loading the applicationContext for every test case that
extends
it. And because the applicationContext is static the instances of the spring
beans loaded
are not cleaned up by the garbage collector. I could verify this by using
JVisualVM and seeing the memory usage climb and by doing a heap dump and seeing
the multiple instances of Spring beans.
What I ended up doing was overriding the method with the following in my base
test class
for Struts 2. The only difference being the check to see if applicationContext
is null.
This has the added benefit of speeding up the tests.
protected void setupBeforeInitDispatcher() throws Exception {
// only load beans from spring once
if (applicationContext == null) {
GenericXmlContextLoader xmlContextLoader = new
GenericXmlContextLoader();
applicationContext =
xmlContextLoader.loadContext(getContextLocations());
}
servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE,
applicationContext);
}
Maybe someone can update the repository with this.
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