xstream and ibm j9 sdk incompatibilities on linux
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by Yoni
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Published on 2010-06-02T12:14:11Z
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2010/06/03
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I encountered an incompatibility with xstream and IBM J9 jdk (the 32bits version). Everything worked fine when I used sun jdk but fails on IBM jdk (on linux only. on windows it's ok with both jdks).
When debugging, the error appears to be that xstream uses a java.util.TreeSet internally but the set's iterator returns elements in the wrong order (I know this sounds very strange, but this is the behavior that I saw). Googling for related bugs didn't give any meaningful results
I tried upgrading pretty much any component possible but no luck. I tried the following configurations:
- ibm jdk 1.6 SR 7 (bundled with WebSphere 7.0.0.9), xstream 1.2.2
- ibm jdk 1.6 SR 8, xstream 1.2.2
- ibm jdk 1.6 SR 8, xstream 1.3.1
(I tried those both with tomcat and with WebSphere server, so actually there are 6 configurations using IBM jdk).
The code in question is in class com.thoughtworks.xstream.core.DefaultConverterLookup
, around line 44. It uses an iterator from class com.thoughtworks.xstream.core.util.PrioritizedList
, which uses a custom comparator, but all the comparator does is compare integers (the priorities).
Has anyone seen this before? Any idea what can I do or change?
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