Here is an entry from my nightly analysis report:
New JDI_REGRESSION failures (from 2007.08.23)
This test failed the following assertion:
Internal Error (src/share/vm/runtime/synchronizer.cpp:3432)
Error: assert(false,"Non-balanced monitor enter/exit!")
on Solaris SPARC Client VM (machine nanonano). I found the
following bug that names this assertion:
6302798 2/2 Java2Demo assertion failure with biased locking
However, this bug was fixed way back in Mustang-B46.
###@###.### sent an e-mail reporting a sighting
of this assertion on 2006.07.31. There was reply from Ken
asking for more details, but I have no further e-mails.
The above entry was with Dolphin-B18 JDK bits, but with a newer VM
so this is a Dolphin-B19ish failure.