[jboss-jira] [JBoss JIRA] Resolved: (JBAS-9397) Memory leak in EJB3.1 no interface view for stateful beans

Memory leak in EJB3.1 no interface view for stateful beans ---------------------------------------------------------- Key: JBAS-9397 URL: https://issues.jboss.org/browse/JBAS-9397 Project: Legacy JBoss Application Server 6 Issue Type: Bug Security Level: Public(Everyone can see) Components: EJB Affects Versions: 6.0.0.Final Environment: All platforms Reporter: Jürgen Koras Assignee: jaikiran pai Priority: Critical Fix For: 6.1.0 Attachments: JavassistProxyFactory-patch.txt Using a stateful no-interface bean causes a memory leak in PermGen space. This can easily be reproduced by creating and removing such a bean. On my machine it fails after 22500 instances. The problem is that for each instance of a bean a new Proxy-class is generated. This is done using javassist framework in the class org.jboss.ejb3.proxy.javassist.JavassistProxyFactory in method createProxy(Class[], InvocationHandler). Here the depreciated javassist method (instance).setHandler(...) is used. Due to documentation (http://www.csg.is.titech.ac.jp/~chiba/javassist/html/javassist/util/proxy...) this call deactivates the cache! The solution is simply to remove that call and pass the handler right in the (instance).create(...) method.