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In order to debug programs very useful is analysis of core dumps of applications. But Netbeans don't have that possibility.
I believe it should be implemented in the next release.
simple ui implemented in: http://hg.netbeans.org/cnd-main/rev/acb75aaff165
implemented in: http://hg.netbeans.org/cnd-main/rev/70079d3f9165