* thread #7, stop reason = signal SIGSTOP
    frame #0: 0x000000010dfead77 libjvm.dylib`OopIterateClosure::should_verify_oops(this=0x00007fdb23f07de8) at iterator.hpp:104 [opt]
(lldb) bt
* thread #7, stop reason = signal SIGSTOP
  * frame #0: 0x000000010dfead77 libjvm.dylib`OopIterateClosure::should_verify_oops(this=0x00007fdb23f07de8) at iterator.hpp:104 [opt]
    frame #1: 0x000000010e3214f3 libjvm.dylib`void InstanceMirrorKlass::oop_oop_iterate_reverse<unsigned int, G1ScanEvacuatedObjClosure>(oop, G1ScanEvacuatedObjClosure*) [inlined] void Devirtualizer::do_oop<G1ScanEvacuatedObjClosure, unsigned int>(closure=<unavailable>, p=0x00000007fe22c088) at iterator.inline.hpp:128 [opt]
    frame #2: 0x000000010e3214e8 libjvm.dylib`void InstanceMirrorKlass::oop_oop_iterate_reverse<unsigned int, G1ScanEvacuatedObjClosure>(oop, G1ScanEvacuatedObjClosure*) [inlined] void InstanceKlass::oop_oop_iterate_oop_map_reverse<unsigned int, G1ScanEvacuatedObjClosure>(this=<unavailable>, map=<unavailable>, obj=oop @ 0x000070000ba8d7d0, closure=<unavailable>) at instanceKlass.inline.hpp:74 [opt]
    frame #3: 0x000000010e321499 libjvm.dylib`void InstanceMirrorKlass::oop_oop_iterate_reverse<unsigned int, G1ScanEvacuatedObjClosure>(oop, G1ScanEvacuatedObjClosure*) [inlined] void InstanceKlass::oop_oop_iterate_oop_maps_reverse<unsigned int, G1ScanEvacuatedObjClosure>(this=<unavailable>, obj=oop @ 0x000070000ba8d7e8, closure=<unavailable>) at instanceKlass.inline.hpp:118 [opt]
    frame #4: 0x000000010e32143f libjvm.dylib`void InstanceMirrorKlass::oop_oop_iterate_reverse<unsigned int, G1ScanEvacuatedObjClosure>(oop, G1ScanEvacuatedObjClosure*) [inlined] void InstanceKlass::oop_oop_iterate_reverse<unsigned int, G1ScanEvacuatedObjClosure>(this=<unavailable>, obj=oop @ 0x000070000ba8d7d8, closure=<unavailable>) at instanceKlass.inline.hpp:146 [opt]
    frame #5: 0x000000010e32141f libjvm.dylib`void InstanceMirrorKlass::oop_oop_iterate_reverse<unsigned int, G1ScanEvacuatedObjClosure>(this=<unavailable>, obj=oop @ 0x000070000ba8d830, closure=0x00000007fe22c088) at instanceMirrorKlass.inline.hpp:83 [opt]
    frame #6: 0x000000010e321374 libjvm.dylib`void OopOopIterateBackwardsDispatch<G1ScanEvacuatedObjClosure>::Table::oop_oop_iterate_backwards<InstanceMirrorKlass, unsigned int>(cl=0x00007fdb23f07de8, obj=<unavailable>, k=0x00000008003c8ca0) at iterator.inline.hpp:355 [opt]
    frame #7: 0x000000010e31f8cd libjvm.dylib`void OopIteratorClosureDispatch::oop_oop_iterate_backwards<G1ScanEvacuatedObjClosure>(cl=0x00007fdb23f07de8, obj=<unavailable>, klass=0x00000008003c8ca0) at iterator.inline.hpp:420 [opt]
    frame #8: 0x000000010e31ec31 libjvm.dylib`void oopDesc::oop_iterate_backwards<G1ScanEvacuatedObjClosure>(this=<unavailable>, cl=0x00007fdb23f07de8) at oop.inline.hpp:452 [opt]
    frame #9: 0x000000010e31e463 libjvm.dylib`G1ParScanThreadState::copy_to_survivor_space(this=<unavailable>, state=<unavailable>, old=<unavailable>, old_mark=<unavailable>) at g1ParScanThreadState.cpp:326 [opt]
    frame #10: 0x000000010e348c24 libjvm.dylib`void G1ParCopyClosure<(G1Barrier)1, (G1Mark)0>::do_oop_work<oop>(this=0x00007fdb23f08208, p=0x00007fdb2333e718) at g1OopClosures.inline.hpp:243 [opt]
    frame #11: 0x000000010e13066d libjvm.dylib`ClassLoaderData::ChunkedHandleList::oops_do(OopClosure*) at classLoaderData.cpp:213 [opt]
    frame #12: 0x000000010e130655 libjvm.dylib`ClassLoaderData::ChunkedHandleList::oops_do(this=<unavailable>, f=0x00007fdb23f08208) at classLoaderData.cpp:224 [opt]
    frame #13: 0x000000010e31af58 libjvm.dylib`G1CLDScanClosure::do_cld(this=0x00007fdb23f08238, cld=<unavailable>) at g1OopClosures.cpp:55 [opt]
    frame #14: 0x000000010e134093 libjvm.dylib`ClassLoaderDataGraph::roots_cld_do(strong=0x00007fdb23f08238, weak=0x00007fdb23f08238) at classLoaderDataGraph.cpp:258 [opt]
    frame #15: 0x000000010e34bed5 libjvm.dylib`G1RootProcessor::process_java_roots(this=0x000070000c09f698, closures=0x00007fdb23f081d0, phase_times=0x00007fdb2180e220, worker_i=0) at g1RootProcessor.cpp:208 [opt]
    frame #16: 0x000000010e34bc70 libjvm.dylib`G1RootProcessor::evacuate_roots(this=0x000070000c09f698, pss=<unavailable>, worker_i=0) at g1RootProcessor.cpp:82 [opt]
    frame #17: 0x000000010e2ce31a libjvm.dylib`G1EvacuateRegionsTask::scan_roots(this=0x000070000c09f638, pss=0x00007fdb23f07c80, worker_id=0) at g1CollectedHeap.cpp:3691 [opt]
    frame #18: 0x000000010e2ce244 libjvm.dylib`G1EvacuateRegionsBaseTask::work(this=0x000070000c09f638, worker_id=0) at g1CollectedHeap.cpp:3679 [opt]
    frame #19: 0x000000010ea2e9d2 libjvm.dylib`GangWorker::run_task(this=0x00007fdb21816000, data=WorkData @ 0x00007fb85fd26180) at workgroup.cpp:335 [opt]
    frame #20: 0x000000010ea2ea7b libjvm.dylib`GangWorker::loop(this=0x00007fdb21816000) at workgroup.cpp:345 [opt]
    frame #21: 0x000000010e95153f libjvm.dylib`Thread::call_run(this=0x00007fdb21816000) at thread.cpp:400 [opt]
    frame #22: 0x000000010e7be456 libjvm.dylib`thread_native_entry(thread=0x00007fdb21816000) at os_bsd.cpp:694 [opt]
    frame #23: 0x00007fff717c5661 libsystem_pthread.dylib`_pthread_body + 340
    frame #24: 0x00007fff717c550d libsystem_pthread.dylib`_pthread_start + 377
    frame #25: 0x00007fff717c4bf9 libsystem_pthread.dylib`thread_start + 13
(lldb)