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Home » Modeling » UML2 » CacheAdapter prevents garbage collection
CacheAdapter prevents garbage collection [message #626053] Wed, 20 February 2008 02:16
Rafael Chaves is currently offline Rafael ChavesFriend
Messages: 362
Registered: July 2009
Senior Member
Hi all,

In my application, the singleton instance of CacheAdapter keeps holding
onto models even after I unload all resources in a resource set. With
the standard maximum heap size, loading and unloading a model several
times quickly leads to an OutOfMemoryError.

Just for kicks, I imported the org.eclipse.uml2.common plug-in and added
a static flush method to CacheAdapter that just replaces the current
CacheAdapter.INSTANCE with a new, empty one. The problem goes away.
Memory consumption remains constant.

There must be something that my application does that triggers this
problem. I spent some considerably time trying to come up with a simple
test case that would show the problem outside of the scope of my
application, but I haven't managed to do that yet. So instead of opening
a bug report, I decided to ask for help here. So, if CacheAdapter keeps
holding onto model elements, what may I be doing wrong? Any clues?

Thanks,

Rafael
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