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https://issues.apache.org/jira/browse/WSCOMMONS-286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bhaskar Maddala updated WSCOMMONS-286:
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Attachment: _286.diff
Implements a unit test that shows the bug as well as the fix in
OMChildrenQNameIterator
> getChildrenWithQName.next throws ClassCastException, OMChildrenQNameIterator
> implements Iterator but does not satisfy published interface behavior
> --------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: WSCOMMONS-286
> URL: https://issues.apache.org/jira/browse/WSCOMMONS-286
> Project: WS-Commons
> Issue Type: Bug
> Components: AXIOM
> Environment: OS : Any
> Axiom Version 1.2.5
> Java Runtime version : 1.5
> Reporter: Bhaskar Maddala
> Attachments: _286.diff
>
>
> Given the following xml fragment
> <ns1:BOSettings xmlns:ns1="http://a.b.c/pro";>
> <ns1:ObjectType>X</ns1:ObjectType>
> </ns1:BOSettings>
> Iterator objectTypeIt =
> bosettings.getChildrenWithName(helper.createQNameForField("ObjectType"));
> invoking
> OMElement element = objectTypeIt.next();
> throws a ClassCastException
> the OMChildrenQNameIterator return the first child which in this case is of
> type OMText
> the issue can be fixed by first calling hasNext and then next, the hasNext
> method has a side effect which allows the next to proceed correctly.
> This behavior does not obey the published Iterator documentation, the
> following is expected Iterator behavior
> Iterator<Integer> it = Arrays.asList(new Integer[] { Integer.valueOf(1),
> Integer.valueOf(2),});
> do
> {
> it.next();
> } while(it.hasNext());
> will work correctly and is the expected behavior.
> Whereas calling it.next on an Iterator instance of type
> OMChildrenQNameIterator will result in a ClassCastException
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