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https://issues.apache.org/jira/browse/JCR-1644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12605163#action_12605163
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fabrizio giustina commented on JCR-1644:
----------------------------------------

I got the StackOverflowError too while trying to import large xml files with 
jackrabbit 1.4.5:

java.lang.StackOverflowError
        at java.util.HashMap.get(HashMap.java:305)
        at 
org.apache.jackrabbit.core.xml.NamespaceContext.getURI(NamespaceContext.java:93)
        at 
org.apache.jackrabbit.core.xml.NamespaceContext.getURI(NamespaceContext.java:97)
        at 
org.apache.jackrabbit.core.xml.NamespaceContext.getURI(NamespaceContext.java:97)
        [...]

looks pretty much a bug than an improvement...

> make NamespaceContext#getPrefix(java.lang.String) iterative instead of 
> recursive
> --------------------------------------------------------------------------------
>
>                 Key: JCR-1644
>                 URL: https://issues.apache.org/jira/browse/JCR-1644
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Philippe Marschall
>            Priority: Minor
>         Attachments: NamespaceContext.java, NamespaceContext.java.patch
>
>
> Currently the method 
> org.apache.jackrabbit.core.xml.NamespaceContext#getPrefix(java.lang.String) 
> uses recursion. For very large XML files (50 MB Magnolia website exports) 
> this causes a stack overflow. The method can easily be rewritten using 
> iteration.

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