Our WebSphere Application Server started core dumping immediately after we 
merged our hbase feature branch to our mainline.  I've tracked this down to 
Bytes use of theUnsafe.  The IBM JRE supplies Unsafe, but apparently it doesn't 
work worth a damn.  I managed to temporarily work "around" the issue using some 
AOP wizardry.  Would it be possible to add some property check to the static 
initializer to allow one to explicitly opt for the pure Java comparer?
 
http://grepcode.com/file/repo1.maven.org/maven2/org.apache.hbase/hbase/0.94.7/org/apache/hadoop/hbase/util/Bytes.java#Bytes.LexicographicalComparerHolder.getBestComparer%28%29
 
thanks,
 
-Jess

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