Here is output of test:

[2006-09-01T23:23:28.62] Below 'Unexpected error' is actually expected - JVM is forced to dump core
[2006-09-01T23:24:05.99] Starting eating perm gen.
[2006-09-01T23:24:05.99] #
[2006-09-01T23:24:05.99] # An unexpected error has been detected by Java Runtime Environment:
[2006-09-01T23:24:05.99] #
[2006-09-01T23:24:05.99] # SIGSEGV (0xb) at pc=0xfffffd7fff31f84a, pid=1217, tid=2
[2006-09-01T23:24:05.99] #
[2006-09-01T23:24:05.99] # Java VM: Java HotSpot(TM) 64-Bit Server VM (1.6.0-rc-fastdebug-b97-debug compiled mode)
[2006-09-01T23:24:05.99] # Problematic frame:
[2006-09-01T23:24:05.99] # C [libc.so.1+0xaf84a] _kill+0xa
[2006-09-01T23:24:05.99] #
[2006-09-01T23:24:05.99] # An error report file with more information is saved as hs_err_pid1217.log
[2006-09-01T23:24:05.99] #
[2006-09-01T23:24:05.99] # If you would like to submit a bug report, please visit:
[2006-09-01T23:24:05.99] # http://java.sun.com/webapps/bugreport/crash.jsp
[2006-09-01T23:24:05.99] #
[2006-09-01T23:24:05.99] VM option '-UseGCOverheadLimit'
[2006-09-01T23:24:05.99] Current thread is 2
[2006-09-01T23:24:05.99] Dumping core ...
[2006-09-01T23:24:05.99] Dumping heap to heap.bin ...
[2006-09-01T23:24:05.99] Heap dump file created
[2006-09-01T23:24:05.99] Verifying heap.bin
[2006-09-01T23:24:05.99] Reading from heap.bin...
[2006-09-01T23:24:05.99] Dump file created Sat Sep 02 03:23:53 MSD 2006
[2006-09-01T23:24:05.99] Snapshot read, resolving...
[2006-09-01T23:24:05.99] Resolving 5507 objects...
[2006-09-01T23:24:05.99] Verification of heap dump failed
[2006-09-01T23:24:05.99] TEST FAILED
[2006-09-01T23:24:05.99] Abort - core dumped
[2006-09-01T23:24:05.99] Attaching to core core from executable /net/vmsqe.russia/export1/vmsqe/jdk-builds/latest/solaris-amd64/fastdebug/bin/java, please w
ait...
[2006-09-01T23:24:05.99] Debugger attached successfully.
[2006-09-01T23:24:05.99] Server compiler detected.
[2006-09-01T23:24:05.99] JVM version is 1.6.0-rc-fastdebug-b97-debug
[2006-09-01T23:24:05.99] Exception in thread "main" java.lang.ClassCastException: java.lang.Long cannot be cast to com.sun.tools.hat.internal.model.JavaClass
[2006-09-01T23:24:05.99] at com.sun.tools.hat.internal.model.JavaObjectArray.resolve(JavaObjectArray.java:68)
[2006-09-01T23:24:05.99] at com.sun.tools.hat.internal.model.Snapshot.resolve(Snapshot.java:237)
[2006-09-01T23:24:05.99] at com.sun.tools.hat.Main.main(Main.java:152)
[2006-09-01T23:24:05.99] # Test level exit status: 1