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

Usage of ImageIO in ResourceBuilderImpl causes memory leak ---------------------------------------------------------- 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 Assignee: Tsikhon Kuprevich Fix For: 3.3.1 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.