Logged In: YES

Have you tried to remove jcifs from the profiling session?
Eventually this may avoid the problem. Just add a REJECT
rule to the pattern "jcifs.*(*)" at the top of the rule
list. Even more, you want to remove all rules and add s
single rule that ACCEPTs only your classes.

Two further questions:
(1) What do you mean by "profiling again"? Does that mean
that you modified the profiling rules on-the-fly? There are
cases in which redefining a class on-the-fly causes an error.
(2) Are you using a custom classloader?