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Posted to commits@wicket.apache.org by "Danny Christl (JIRA)" <ji...@apache.org> on 2015/10/22 08:57:27 UTC

[jira] [Created] (WICKET-6009) Massive creation of dynamic classes causes OutOfMemory (PermGen)

Danny Christl created WICKET-6009:
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             Summary: Massive creation of dynamic classes causes OutOfMemory (PermGen)
                 Key: WICKET-6009
                 URL: https://issues.apache.org/jira/browse/WICKET-6009
             Project: Wicket
          Issue Type: Bug
          Components: wicket-spring
    Affects Versions: 6.20.0
         Environment: Glassfish 4.1, Any OS, Any JDK
            Reporter: Danny Christl
            Priority: Blocker


After upgrading Wicket from 6.19 to 6.20 we are discovering massive unnecessary creation of CGLIB-Classes. After debugging the issue occurs every time an old page version is requested from PageStore that has an injected (@SpringBean) - member . If this happens a new proxy will be created every time. This leads to permgen waste and in the end to OutOfMemoryErrors and crashes. In 6.19. this error doesn't occur. For reproducing load any older version of a versioned page and a new class is loaded in ClassLoader (WICKET_WICKET_<anyInjectedSpringBean>$$EnhancerByCGLIB...<anyHash>) 





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