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https://issues.apache.org/jira/browse/TOMAHAWK-1464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771415#action_12771415
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Hans Cappelle commented on TOMAHAWK-1464:
-----------------------------------------
This representation of classloader and classes is easier to read:
Class Name
| Shallow Heap | Retained Heap
-----------------------------------------------------------------------------------------------------------------------
org.apache.catalina.loader.WebappClassLoader @ 0x1d440e10
| 176 | 99.160
'- <classloader> class org.apache.myfaces.custom.fileupload.UploadedFile @
0x341b5c70 | 0 | 0
'- key java.util.Hashtable$Entry @ 0x1d44e950
| 24 | 48
'- [1] java.util.Hashtable$Entry[47] @ 0x1d5dfb58
| 200 | 728
'- table java.util.Hashtable @ 0x1c6ff480
| 40 | 768
'- registry class java.beans.PropertyEditorManager @ 0x32ecb2f0
System Class| 8 | 864
-----------------------------------------------------------------------------------------------------------------------
> 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.webappclassloa...@0x1e26b260 [ 853 classes ]
> ^----
> com.sun.faces.application.converterpropertyeditorfactory$disposableclassloa...@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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