hotspot/src/share/vm/runtime/mutex.cpp:899), pid=52456, tid=50688
# assert(_safepoint_check_required != Monitor::_safepoint_check_never) failed: This lock should never have a safepoint check: SFPT_Test_lock

Current thread (0x01323400): JavaThread "main" [_thread_in_vm, id=50688, stack(0x01110000,0x01160000)]

Stack: [0x01110000,0x01160000], sp=0x0115f284, free space=316k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x5459a9]
V [jvm.dll+0x545ea7]
V [jvm.dll+0x1a3088]
V [jvm.dll+0x429a27]
V [jvm.dll+0x429c88]
V [jvm.dll+0x563e67]
j sun.hotspot.WhiteBox.assertMatchingSafepointCalls(ZZ)V+0
j AssertSafepointCheckConsistency2.main([Ljava/lang/String;)V+10
v ~StubRoutines::call_stub
V [jvm.dll+0x290771]
V [jvm.dll+0x455de5]
V [jvm.dll+0x2903db]
V [jvm.dll+0x30566a]
V [jvm.dll+0x3009a5]
C [java.exe+0x2c52]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j sun.hotspot.WhiteBox.assertMatchingSafepointCalls(ZZ)V+0
j AssertSafepointCheckConsistency2.main([Ljava/lang/String;)V+10
v ~StubRoutines::call_stub