The tests in nsk/monitoring/MemoryPoolMBean/ triggers the following assert:

#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/opt/jprt/T/P1/151109.ehn/s/src/share/vm/runtime/mutex.cpp:1318), pid=28511, tid=140047208359680
# fatal error: acquiring lock Metaspace allocation lock/5 out of order with lock Service_lock/1 -- possible deadlock
#
# JRE version: Java(TM) SE Runtime Environment (8.0-b81) (build 1.8.0-ea-fastdebug-b81)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.0-b24-internal-201303221511.ehn.hotspot-fastdebug mixed mode linux-amd64 compressed oops)
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#

--------------- T H R E A D ---------------

Current thread (0x0000000002421800): JavaThread "main" [_thread_in_vm, id=28515, stack(0x00007f5f480b2000,0x00007f5f481b3000)]

Stack: [0x00007f5f480b2000,0x00007f5f481b3000], sp=0x00007f5f481b0f80, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xd97c02] VMError::report_and_die()+0x302
V [libjvm.so+0x67b120] report_fatal(char const*, int, char const*)+0x80
V [libjvm.so+0xb14165] Monitor::set_owner_implementation(Thread*)+0x225
V [libjvm.so+0xad4d4a] SpaceManager::sum_used_in_chunks_in_use() const+0x2a
V [libjvm.so+0xad4f1c] MetaspaceAux::used_in_bytes(Metaspace::MetadataType)+0x4c
V [libjvm.so+0xacaf9d] MetaspacePoolBase::get_memory_usage()+0x2d
V [libjvm.so+0xa4dadb] LowMemoryDetector::detect_low_memory(MemoryPool*)+0x6b
V [libjvm.so+0xa8a6cf] jmm_SetPoolThreshold+0x23f
C [libmanagement.so+0x4985] Java_sun_management_MemoryPoolImpl_setUsageThreshold0+0x85
j sun.management.MemoryPoolImpl.setUsageThreshold0(JJ)V+0
j sun.management.MemoryPoolImpl.setUsageThreshold(J)V+165
j nsk.share.monitoring.MemoryMonitor.setUsageThreshold(Ljava/lang/Object;J)V+37
j nsk.monitoring.MemoryPoolMBean.getUsageThreshold.getthreshold001.test(Lnsk/share/monitoring/MemoryMonitor;Ljava/lang/Object;JLnsk/share/Log;)V+27
j nsk.monitoring.MemoryPoolMBean.getUsageThreshold.getthreshold001.run([Ljava/lang/String;Ljava/io/PrintStream;)I+154
j nsk.monitoring.MemoryPoolMBean.getUsageThreshold.getthreshold001.main([Ljava/lang/String;)V+6
v ~StubRoutines::call_stub
V [libjvm.so+0x874e8e] JavaCalls::call_helper(JavaValue*, methodHandle*, JavaCallArguments*, Thread*)+0x17fe
V [libjvm.so+0x89bf65] jni_invoke_static(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, Thread*)+0x535
V [libjvm.so+0x89cf89] jni_CallStaticVoidMethod+0x1f9
C [libjli.so+0x7e24] JavaMain+0x844

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j sun.management.MemoryPoolImpl.setUsageThreshold0(JJ)V+0
j sun.management.MemoryPoolImpl.setUsageThreshold(J)V+165
j nsk.share.monitoring.MemoryMonitor.setUsageThreshold(Ljava/lang/Object;J)V+37
j nsk.monitoring.MemoryPoolMBean.getUsageThreshold.getthreshold001.test(Lnsk/share/monitoring/MemoryMonitor;Ljava/lang/Object;JLnsk/share/Log;)V+27
j nsk.monitoring.MemoryPoolMBean.getUsageThreshold.getthreshold001.run([Ljava/lang/String;Ljava/io/PrintStream;)I+154
j nsk.monitoring.MemoryPoolMBean.getUsageThreshold.getthreshold001.main([Ljava/lang/String;)V+6
v ~StubRoutines::call_stub