[richfaces-issues] [JBoss JIRA] Created: (RF-4471) Usage of ImageIO in ResourceBuilderImpl causes memory leak

[Philipp Schoepf (JIRA)]

Usage of ImageIO in ResourceBuilderImpl causes memory leak
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                 Key: RF-4471
                 URL: https://jira.jboss.org/jira/browse/RF-4471
             Project: RichFaces
          Issue Type: Bug
    Affects Versions: 3.1.6
         Environment: any
            Reporter: Philipp Schoepf


It seems as we found a memleak in the ResourceBuilderImpl class. The call to 

ImageIO.setCache(false)

causes sun.awt.AppContext to statically initialize itself (inside static initialization of IIORegistry). The problem is that AppContext seems to hold a static reference to the contextclassloader of the calling thread. When our application gets undeployed the reference to the applications classloader is still hold by AppContext causing that loaded classes cannot be garbage collected.

I only checked richfaces 3.16 but if ResourceBuilderImpl still exists in 3.2 stream I suppose that the problem exists there as well.


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