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https://issues.apache.org/jira/browse/WSCOMMONS-489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796198#action_12796198
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Ben Reif commented on WSCOMMONS-489:
------------------------------------

Andreas, 

Thanks for the quick reply. I guess technically nothing is preventing us from 
using the 1.2.9-SNAPSHOT. We are using Axis2 1.4 (which came with Axiom 1.2.7) 
and it's really more of a question of risk and how stable the 
Axiom1.2.9-SNAPSHOT is and also if it is compatible with Axis2 1.4. Would you 
be able to provide any feedback on this?

Thanks,
Ben

> StAXUtils incorrectly assumes that XMLInputFactory and XMLOutputFactory 
> instances are thread safe
> -------------------------------------------------------------------------------------------------
>
>                 Key: WSCOMMONS-489
>                 URL: https://issues.apache.org/jira/browse/WSCOMMONS-489
>             Project: WS-Commons
>          Issue Type: Bug
>          Components: AXIOM
>    Affects Versions: Axiom 1.2.8
>            Reporter: Andreas Veithen
>            Assignee: Andreas Veithen
>             Fix For: Axiom 1.2.9
>
>
> StAXUtil uses a single XMLInputFactory or XMLOutputFactory instance (per 
> classloader). This means that it makes the assumption that these instances 
> are thread safe. However, there is nothing in the StAX specs that guarantees 
> that, and Sun's implementation in JDK 6 is not thread safe, at least with the 
> default properties [1] [2].
> [1] 
> http://www.java2s.com/Open-Source/Java-Document/6.0-JDK-Modules-com.sun/xml/com/sun/xml/internal/stream/XMLInputFactoryImpl.java.htm
> [2] 
> http://www.java2s.com/Open-Source/Java-Document/6.0-JDK-Modules-com.sun/xml/com/sun/xml/internal/stream/XMLOutputFactoryImpl.java.htm

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