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From "Andreas Veithen (JIRA)" <axis-...@ws.apache.org>
Subject [jira] [Commented] (AXIS-2863) Circular Reference in Deserialization and XMLReader
Date Mon, 07 Jan 2013 15:06:13 GMT

    [ https://issues.apache.org/jira/browse/AXIS-2863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13545943#comment-13545943
] 

Andreas Veithen commented on AXIS-2863:
---------------------------------------

Yes, you should create a new issue and also try to get more information about the issue, namely
show the GC roots for the DeserializationContext objects.
                
> Circular Reference in Deserialization and XMLReader
> ---------------------------------------------------
>
>                 Key: AXIS-2863
>                 URL: https://issues.apache.org/jira/browse/AXIS-2863
>             Project: Axis
>          Issue Type: Bug
>          Components: Serialization/Deserialization
>    Affects Versions: 1.4
>         Environment: IBM AIX JRE 1.4.2
>            Reporter: Nagaraj
>            Assignee: Andreas Veithen
>            Priority: Critical
>             Fix For: 1.4.1
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> I got out of memory error and when i analysed heap dump, i was getting infinite active
references of deserialization and xmlreader.When expand Deserialization context,XMLReader
reference is there and when expand XMLReader,Deserialization reference is there.It seems to
be circular reference.The sample output of heap dump is given below. 
>                                                                                     
     | Shallow Heap | Retained Heap | Percentage 
> org.apache.axis.encoding.DeserializationContext @ 0x505dbbc8 | 88 | 988,356,416 | 60.92%

> |- oracle.xml.parser.v2.XMLReader @ 0x505dc5f8 | 128 | 988,272,872 | 60.92% 
> | |- org.apache.axis.encoding.DeserializationContext @ 0x504ce7d8 | 88 | 988,263,992
| 60.92% 
> | | |- oracle.xml.parser.v2.XMLReader @ 0x505385b0 | 128 | 988,190,680 | 60.91% 
> | | | |- org.apache.axis.encoding.DeserializationContext @ 0x89592c00 | 88 | 988,181,800
| 60.91% 
> | | | | |- oracle.xml.parser.v2.XMLReader @ 0x89592e00 | 128 | 988,067,936 | 60.91% 
> | | | | | |- org.apache.axis.encoding.DeserializationContext @ 0x50799858 | 88 | 988,059,056
| 60.91% 
> | | | | | | |- oracle.xml.parser.v2.XMLReader @ 0x5079d0e8 | 128 | 987,975,512 | 60.90%

> | | | | | | | |- org.apache.axis.encoding.DeserializationContext @ 0x505e23d8 | 88 |
987,966,632 | 60.90% 
> | | | | | | | | |- oracle.xml.parser.v2.XMLReader @ 0x505e1c08 | 128 | 987,892,528 |
60.90% 
> Please provide some solution for this. 

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