Robert Varga created KARAF-4539:
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Summary: Do not default to Xalan as the TransformerFactory
implementation
Key: KARAF-4539
URL: https://issues.apache.org/jira/browse/KARAF-4539
Project: Karaf
Issue Type: Bug
Affects Versions: 3.0.6, 3.0.5
Reporter: Robert Varga
The switch to Xalan-J as the default transformer factory in KARAF-3956 has
broken OpenDaylight XML processing code in multiple places.
The first issue is that Xalan's TransformerImpl does not support StAXResult,
which is a regression from JVM defaults and requires clear hacks to workaround:
https://github.com/opendaylight/yangtools/commit/dd5487e20c8a9b2191516b230ccd4e16896652dd.
The other issue seems to be correctness of transformation from DOM to SAX. The
effect is that code in
https://github.com/opendaylight/netconf/blob/3062d9b5a6704075b4b10a8e1ad481738ca370c7/netconf/netconf-netty-util/src/main/java/org/opendaylight/netconf/nettyutil/handler/NetconfEXIToMessageDecoder.java
fails to emit proper namespaces. This looks related to
https://issues.apache.org/jira/browse/XALANJ-2382 and/or
https://bugs.openjdk.java.net/browse/JDK-6305029.
In both cases code which runs just fine with multiple JVMs and worked with
karaf-3.0.3 fails with 3.0.6 unless non-trivial surgery is performed:
https://git.opendaylight.org/gerrit/39368.
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