Could be anything, but this is where we crash:
From the pstack.core:
----------------- lwp# 22 / thread# 22 --------------------
0000000000000000 ???????? (ffffffe2f64b2398, ffffffff63afca68, 1, 0, ffffffff63afca68, a) + ddfde628
ffffffe2f67e1220 __1cHVMErrorGreport6MpnMoutputStream__v_ (ffffffff63afe138, ffffffff63afdff0, 7d0, a, ffffffffffe08965, ffffffe2f6f5446d) + 68
ffffffe2f67e2d24 __1cHVMErrorOreport_and_die6M_v_ (ffffffff63afe138, dac00, dac00, 3c00, 1f6c00, ffffffe2f7226768) + 37c
ffffffe2f64ac4bc JVM_handle_solaris_signal (a, ffffffff63afe8c0, c0800, ffffffff63afe138, ffffffff63afe5e0, 1006f1800) + c6c
ffffffe2f64a4554 signalHandler (a, ffffffff63afe8c0, ffffffff63afe5e0, 0, 0, 0) + 1c
ffffffff7eee26ac __sighndlr (a, ffffffff63afe8c0, ffffffff63afe5e0, ffffffe2f64a4538, 0, ffffffff7f07e000) + c
ffffffff7eed5ce0 call_user_handler (ffffffff7dd0a240, ffffffff63afe8c0, ffbffeff, 0, 0, a) + 364
ffffffff7eed5f10 sigacthandler (a, ffffffff63afe8c0, ffffffff63afe5e0, 1a8148, ffffffff7f07e000, a) + 5c
--- called from signal handler with signal 10 (SIGBUS) ---
ffffffe2f646fa30 __1cNObjectMonitorGEnterI6MpnGThread__v_ (1006f9700, 1006f1800, 200, bc7fc, ffffffe2f714bb08, ffffffe2f6dd8c57) + 520
ffffffe2f646eeec __1cNObjectMonitorFenter6MpnGThread__v_ (1006f9700, 1006f1800, 3, ffffffe2f71d580f, ffffffe2f714bb08, ffffffe2f6dd806f) + 5b4
ffffffe2f66c1428 __1cSObjectSynchronizerKslow_enter6FnGHandle_pnJBasicLock_pnGThread__v_ (ffffffff63eff150, ffffffff63aff040, 1006f1800, ffffffe2f6eee15e, 3, ffffffe2f714bb08) + 300
ffffffe2f66c0e4c __1cSObjectSynchronizerKfast_enter6FnGHandle_pnJBasicLock_bpnGThread__v_ (ffffffff63eff150, ffffffff63aff040, 789fe6e08, 1006f1800, ffffffe2f71d580f, 895f2) + 194
ffffffe2f5f5e6e8 __1cSInterpreterRuntimeMmonitorenter6FpnKJavaThread_pnPBasicObjectLock__v_ (1006f1800, ffffffff63aff040, 782400000, 1006f1a20, ffffffe2f714bb08, ffffffe2f71d549a) + 570
ffffffff6805be34 * nsk/jvmti/scenarios/contention/TC03/tc03t002Thread.run()V+58
ffffffff6800053c * StubRoutines (1)
ffffffe2f5f7c624 __1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (ffffffff63aff868, c9c00, ffffffff63aff6e0, 1006f1808, ffffffff6540c440, 1) + 94c
ffffffe2f5f7ad50 __1cJJavaCallsMcall_virtual6FpnJJavaValue_nLKlassHandle_pnGSymbol_5pnRJavaCallArguments_pnGThread__v_ (ffffffff63aff868, 89c00, 7c0006a40, 1002241a0, 100225af0, ffffffff63aff6e0) + 1d0
ffffffe2f5f7ae74 __1cJJavaCallsMcall_virtual6FpnJJavaValue_nGHandle_nLKlassHandle_pnGSymbol_6pnGThread__v_ (ffffffff63aff868, 1006f2030, ffffffe2f718ee68, 7c0006a40, 1002241a0, 100225af0) + cc
ffffffe2f60f60f4 __1cMthread_entry6FpnKJavaThread_pnGThread__v_ (1006f1800, 0, 89c00, ffffffff63aff878, ffffffe2f714bb08, 7c0006a40) + f4
ffffffe2f6723db0 __1cKJavaThreadRthread_main_inner6M_v_ (1006f1800, ffffffff63affa40, ffffffff63aff9c8, 9d400, ffffffe2f6f11d27, ffffffe2f71d580f) + 260
ffffffe2f6723ad0 __1cKJavaThreadDrun6M_v_ (1006f1800, 59c8, d, ffffffe2f6f11510, ffffffe2f714bb08, 1006f1a10) + 4f8
ffffffe2f6499554 java_start (1006f1800, 895aa, ffffffe2f71d50b2, 0, ffffffe2f7218838, ffffffe2f714bb08) + 414
ffffffff7eee25b4 _lwp_start (0, 0, 0, 0, 0, 0)