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Posted to dev@ws.apache.org by "Andreas Veithen (Jira)" <ji...@apache.org> on 2021/11/17 12:52:00 UTC

[jira] [Resolved] (AXIOM-500) OMElement.serialize() doesn't release OutputStream

     [ https://issues.apache.org/jira/browse/AXIOM-500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andreas Veithen resolved AXIOM-500.
-----------------------------------
    Fix Version/s: 1.3.0
       Resolution: Fixed

I believe Axiom 1.3.0 actually fixes that because it no longer uses XMLStreamWriter in that code path.

> OMElement.serialize() doesn't release OutputStream
> --------------------------------------------------
>
>                 Key: AXIOM-500
>                 URL: https://issues.apache.org/jira/browse/AXIOM-500
>             Project: Axiom
>          Issue Type: Bug
>    Affects Versions: 1.2.22
>            Reporter: Holger Rehn
>            Priority: Critical
>             Fix For: 1.3.0
>
>
> After OMElement.serialize(OutputStream) returns, the provided stream is still referenced via
> StAXUtils->SynchronizedMap->WeakHashMap->ImmutableXMLOutputFactory->SJSXPOutputFactoryWrapper->XMLOutputFactoryImpl->XMLStreamWriterImpl
> I think the root cause is, that MTOMXMLStreamWriter.close() doesn't close its XMLStreamWriter instance. The comment in close() states that closing the underlying XMLStreamWriter could cause an exception, but I don't see how this could happen. Anyway, the reference to the stream has to be released somehow.
> My current workaround is to use OMElement.serialize(StAXUtils.createXMLStreamWriter(out)) and explicitly close the writer myself.



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