There is crash when java is started with -XX:+UseHeavyMonitors and Specjbb2005 is executed.
The issue is NOT reproducible if -XX:-UseBiasedLocking is specified.

The crash is observed in all modes (-Xint, -Xmixed, -Xcomp).

Product jvm, -Xmixed crash is:
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# Internal Error (synchronizer.cpp:1802), pid=14673, tid=2943716240
# Error: guarantee(mid->header()->is_neutral(),"invariant")

Fastdebug jvm, -Xmixed crash is:
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# Internal Error (/BUILD_AREA/jdk7/hotspot/src/share/vm/runtime/synchronizer.cpp:1276), pid=16472, tid=2934336400
# Error: assert(lock != mark->locker(),"must not re-lock the same lock")

Fastdebug jvm, -Xint, Xcomp crash is:
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# Internal Error (/BUILD_AREA/jdk7/hotspot/src/share/vm/runtime/synchronizer.cpp:1223), pid=17297, tid=4143336336
# Error: assert(!object->mark()->has_bias_pattern(),"should not see bias pattern here")
#