[CXF-3493] StaxUtils.copy(XMLStreamReader,XMLStreamWriter) does not preserve empty namespace URIs

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4
• Fix Version/s: 2.4.1
• Component/s: Core
• Labels: commons namespaces xml
• Estimated Complexity: Novice
• Assignee: Sergey Beryozkin
• Reporter: aaron pieper
• Created: 05/May/11 21:14
• Updated: 08/Aug/11 14:43
• Resolved: 06/May/11 10:16

Description

StaxUtils.copy(XMLStreamReader,XMLStreamWriter) fails to copy documents correctly if they declare a namespace with a zero-length URI. In some cases, this URI is frivolous, but in other cases it is important, such as in the following document:

<foo xmlns="http://example.com"><bar xmlns=""/></foo>

StaxUtils will remove this zero-length URI, resulting in the following XML document:

<foo xmlns="http://example.com"><bar/></foo>

These two documents are not equivalent. In the first document, bar assumes the "empty namespace". In the second document, "bar" assumes the example.com namespace.