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From "Dmitry Repchevsky (JIRA)" <j...@apache.org>
Subject [jira] [Created] (XMLSCHEMA-26) NPE: NamespaceMap.getNamespaceURI() returns null
Date Wed, 01 Aug 2012 10:47:03 GMT
Dmitry Repchevsky created XMLSCHEMA-26:
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             Summary: NPE: NamespaceMap.getNamespaceURI() returns null
                 Key: XMLSCHEMA-26
                 URL: https://issues.apache.org/jira/browse/XMLSCHEMA-26
             Project: XmlSchema
          Issue Type: Bug
    Affects Versions: 2.0.3
         Environment: Java
            Reporter: Dmitry Repchevsky


Related to the
https://issues.apache.org/jira/browse/XMLSCHEMA-25?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
fix.

As mentioned in a comment:
>NamespaceMap returns null if no prefix found while according NamespaceContext it should
return Constants.NULL_NS_URI.

There are two solutions possible.
1. fix NamespaceMap class to do not return null as defined in NamespaceContext contract.
2. make XmlSchemaSerializer changes to check both null && "".

Note that (1) may introduce bugs in code that uses XML Schema where null is incorrectly used
instead of Constants.NULL_NS_URI to check whether prefix is bound.

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