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https://issues.apache.org/jira/browse/AXIS2C-1591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13272161#comment-13272161
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Sebastian Brandt commented on AXIS2C-1591:
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A similar situation is with om_element->namespaces.
Although a namespace "override" should not happen conceptually, it does, which
results in the first entry not being freed.
See also #AXIS2C-1593 about the background of this "namespace override" with
the "xsi" tag.
Sebastian
> axiom_element_add_attribute and duplicate names
> -----------------------------------------------
>
> Key: AXIS2C-1591
> URL: https://issues.apache.org/jira/browse/AXIS2C-1591
> Project: Axis2-C
> Issue Type: Bug
> Components: xml/om
> Affects Versions: 1.7.0
> Reporter: Sebastian Brandt
> Priority: Minor
> Attachments: om_element.c.patch
>
>
> in axiom_element_add_attribute, the attribute is added to the hash of
> attributes in om_element->attributes
> based on the name (axutil_qname_to_string).
> If an attribute with the same name is already in the hash, that entry is
> overwritten and thus, will never be freed.
> This seems to be the case always if several xml nodes have the same namespace
> - the attribute value itself is not used there, or are
> we just talking namespace attributes here?
> I don't even begin to understand what the role of the attributes is, and what
> happes, if the attributes are stored with different names or such.
> For the moment, I will try to create two hashes, one for the attributes that
> are used, and one for the attributes that just have to be freed. Of course, a
> list would be enough for the latter.
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