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From "Hans Cappelle (JIRA)" <...@myfaces.apache.org>
Subject [jira] Created: (TOMAHAWK-1464) PermGen OutOfMemoryError caused by UploadedFile
Date Thu, 29 Oct 2009 09:44:59 GMT
PermGen OutOfMemoryError caused by UploadedFile
-----------------------------------------------

                 Key: TOMAHAWK-1464
                 URL: https://issues.apache.org/jira/browse/TOMAHAWK-1464
             Project: MyFaces Tomahawk
          Issue Type: Bug
          Components: File Upload
         Environment: myfaces-extensions-1.0.9.jar
Sun Java System Application Server 9.1_02 (build b04-fcs) 
JDK 1.6.0_11
            Reporter: Hans Cappelle


After redeploying a simple myfaces project with tomahawk extension the application server
crashes with OutOfMemoryError: PermGen space. Using jmap and jhat I discovered serveral classloaders
with a reference to an instances of org.apache.myfaces.custom.fileupload.UploadedFile were
left in memory. Because of this classloaders can't shut down properly so after several redeployments
we get an OutOfMemory.

classloader hierarchy example (it states 2 classes are left because cleaning my test project
also fails on a richfaces class):

                                        ^---- org.apache.catalina.loader.WebappClassLoader@0x1e26b260
[ 853 classes ]
                                                ^---- com.sun.faces.application.ConverterPropertyEditorFactory$DisposableClassLoader@0x1e27c788
[ 2 classes ]

One of the classes left is: 

class com.sun.faces.application.ConverterPropertyEditorFor_org_apache_myfaces_custom_fileupload_UploadedFile
(84 bytes) : ??

with a reference to: 

class org.apache.myfaces.custom.fileupload.UploadedFile (84 bytes) 

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