[concurrency-interest] Deadlock

Peter Firmstone peter.firmstone at zeus.net.au
Tue Jun 24 15:21:27 EDT 2014


Interesting coincidence, I'll go over the recent discussion to familiarise myself.

Thanks,

Peter. 

----- Original message -----
> [+openjdk mailing lists]
> 
> 
> Yeah, I'm trying to excise all the networking code from TLR and
> SplittableRandom.
> 
> There is also likely to be a missing wrapping in doPrivileged.
> 
> 
> On Tue, Jun 24, 2014 at 7:21 AM, Peter Levart <peter.levart at gmail.com>
> wrote:
> 
> > On 06/24/2014 04:12 PM, Peter Levart wrote:
> > 
> > > On 06/24/2014 01:09 PM, David Holmes wrote:
> > > 
> > > > Hi Peter,
> > > > 
> > > > What a strange coincidence - the fact that the initialization of
> > > > ThreadLocalRandom can lead to arbitrary code execution has just
> > > > been a topic
> > > > of discussion, and it looks like your deadlock is related to that.
> > > > 
> > > 
> > > Uf, this time it's a combination of a custom SecurityManager being in
> > > effect when NetworkInterface.getHardwareAddress() is called. It looks
> > > like we should not use any networking code at all for TLR's
> > > initialization.
> > > 
> > 
> > Or make NetworkInterface.getHardwareAddress() a @CallerSensitive method
> > and avoid SecurityManager invocation when called from one of system
> > classes. That's still an alternative.
> > 
> > Peter
> > 
> > 
> > 
> > > Regards, Peter
> > > 
> > > 
> > > > David Holmes
> > > > 
> > > > -----Original Message-----
> > > > > From: concurrency-interest-bounces at cs.oswego.edu
> > > > > [mailto:concurrency-interest-bounces at cs.oswego.edu]On Behalf Of
> > > > > Peter Firmstone
> > > > > Sent: Tuesday, 24 June 2014 8:25 PM
> > > > > To: concurrency-interest at cs.oswego.edu
> > > > > Subject: [concurrency-interest] Deadlock
> > > > > 
> > > > > 
> > > > > This appears to be a ClassLoader deadlock in Java 7.
> > > > > 
> > > > > The stack trace from the main thread is missing.
> > > > > 
> > > > > Any ideas?
> > > > > 
> > > > > Regards,
> > > > > 
> > > > > Peter.
> > > > > 
> > > > > Attaching to process ID 7124, please wait...
> > > > > Debugger attached successfully.
> > > > > Client compiler detected.
> > > > > JVM version is 25.0-b70
> > > > > Deadlock Detection:
> > > > > 
> > > > > Found one Java-level deadlock:
> > > > > =============================
> > > > > 
> > > > > "main":
> > > > > waiting to lock Monitor at 0x0094bb2c (Object at 0x03d73c38, a
> > > > > java/lang/Object),
> > > > > which is held by "Thread-1"
> > > > > "Thread-1":
> > > > > waiting to lock Monitor at 0x0094c99c (Object at 0x03f02e50, a [I),
> > > > > which is held by "main"
> > > > > 
> > > > > Found a total of 1 deadlock.
> > > > > 
> > > > > Thread 8: (state = BLOCKED)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceFactory.create(java.lang.Object,
> > > > > au.net.zeus.collection.RefQueue, au.net.zeus.collection.Ref)
> > > > > @bci=229, line=60 (Interpreted frame) -
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) @bci=37, line=128 (Interpreted frame)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) @bci=4, line=44 (Interpreted frame)
> > > > > - au.net.zeus.collection.ReferenceMap.wrapKey(java.lang.Object,
> > > > > boolean, boolean) @bci=7, line=248 (Interpreted frame)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceConcurrentMap.putIfAbsent(java.lan
> > > > > g.Object,
> > > > > java.lang.Object) @bci=8, line=67 (Interpreted frame)
> > > > > -
> > > > > org.apache.river.api.security.CombinerSecurityManager.checkPermiss
> > > > > ion(java.security.Permission,
> > > > > java.lang.Object) @bci=161, line=260 (Interpreted frame)
> > > > > -
> > > > > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.checkMBeanTr
> > > > > ustPermission(java.lang.Class)
> > > > > @bci=59, line=1848 (Interpreted frame)
> > > > > -
> > > > > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBea
> > > > > n(java.lang.Object,
> > > > > javax.management.ObjectName) @bci=25, line=322 (Interpreted
> > > > > frame) - com.sun.jmx.mbeanserver.JmxMBeanServer$2.run() @bci=17,
> > > > > line=1225 (Interpreted frame)
> > > > > -
> > > > > java.security.AccessController.doPrivileged(java.security.Privileg
> > > > > edExceptionAction)
> > > > > @bci=0 (Interpreted frame)
> > > > > - com.sun.jmx.mbeanserver.JmxMBeanServer.initialize() @bci=25,
> > > > > line=1223 (Interpreted frame)
> > > > > - com.sun.jmx.mbeanserver.JmxMBeanServer.<init>(java.lang.String,
> > > > > javax.management.MBeanServer,
> > > > > javax.management.MBeanServerDelegate,
> > > > > com.sun.jmx.mbeanserver.MBeanInstantiator, boolean, boolean)
> > > > > @bci=133, line=255 (Interpreted frame) -
> > > > > com.sun.jmx.mbeanserver.JmxMBeanServer.newMBeanServer(java.lang.String,
> > > > > javax.management.MBeanServer,
> > > > > javax.management.MBeanServerDelegate, boolean) @bci=13,
> > > > > line=1437 (Interpreted frame) -
> > > > > javax.management.MBeanServerBuilder.newMBeanServer(java.lang.
> > > > > String, javax.management.MBeanServer,
> > > > > javax.management.MBeanServerDelegate) @bci=4, line=110
> > > > > (Interpreted frame) -
> > > > > javax.management.MBeanServerFactory.newMBeanServer(java.lang.
> > > > > String) @bci=36, line=329 (Interpreted frame)
> > > > > -
> > > > > javax.management.MBeanServerFactory.createMBeanServer(java.lang.String)
> > > > > @bci=6, line=231 (Interpreted frame)
> > > > > - javax.management.MBeanServerFactory.createMBeanServer() @bci=1,
> > > > > line=192 (Interpreted frame)
> > > > > - java.lang.management.ManagementFactory.getPlatformMBeanServer()
> > > > > @bci=29, line=468 (Interpreted frame)
> > > > > -
> > > > > sun.management.jmxremote.ConnectorBootstrap.startLocalConnectorServer()
> > > > > @bci=66, line=518 (Interpreted frame)
> > > > > - sun.management.Agent.startLocalManagementAgent() @bci=13,
> > > > > line=138 (Interpreted frame)
> > > > > - sun.management.Agent.startAgent(java.util.Properties) @bci=76,
> > > > > line=260 (Interpreted frame)
> > > > > - sun.management.Agent.agentmain(java.lang.String) @bci=45,
> > > > > line=128 (Interpreted frame)
> > > > > -
> > > > > sun.reflect.NativeMethodAccessorImpl.invoke0(java.lang.reflect.Method,
> > > > > java.lang.Object, java.lang.Object[]) @bci=0 (Interpreted frame)
> > > > > - sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object,
> > > > > java.lang.Object[]) @bci=100, line=62 (Interpreted frame)
> > > > > -
> > > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object,
> > > > > java.lang.Object[]) @bci=6, line=43 (Interpreted frame) -
> > > > > java.lang.reflect.Method.invoke(java.lang.Object,
> > > > > java.lang.Object[]) @bci=56, line=483 (Interpreted frame) -
> > > > > sun.instrument.InstrumentationImpl.loadClassAndStartAgent(java.lan
> > > > > g.String,
> > > > > java.lang.String, java.lang.String) @bci=192, line=388
> > > > > (Interpreted frame)
> > > > > -
> > > > > sun.instrument.InstrumentationImpl.loadClassAndCallAgentmain(java.
> > > > > lang.String,
> > > > > java.lang.String) @bci=5, line=411 (Interpreted frame)
> > > > > 
> > > > > 
> > > > > Thread 7: (state = BLOCKED)
> > > > > 
> > > > > 
> > > > > Thread 5: (state = BLOCKED)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceFactory.create(java.lang.Object,
> > > > > au.net.zeus.collection.RefQueue, au.net.zeus.collection.Ref)
> > > > > @bci=229, line=60 (Interpreted frame) -
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) @bci=37, line=128 (Interpreted frame)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) @bci=4, line=44 (Interpreted frame)
> > > > > - au.net.zeus.collection.ReferenceMap.wrapKey(java.lang.Object,
> > > > > boolean, boolean) @bci=7, line=248 (Interpreted frame)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceConcurrentMap.putIfAbsent(java.lan
> > > > > g.Object,
> > > > > java.lang.Object) @bci=8, line=67 (Interpreted frame)
> > > > > -
> > > > > org.apache.river.api.security.CombinerSecurityManager.checkPermiss
> > > > > ion(java.security.Permission,
> > > > > java.lang.Object) @bci=161, line=260 (Interpreted frame)
> > > > > -
> > > > > org.apache.river.api.security.CombinerSecurityManager.checkPermiss
> > > > > ion(java.security.Permission)
> > > > > @bci=27, line=202 (Interpreted frame)
> > > > > - java.net.NetworkInterface.getHardwareAddress() @bci=18,
> > > > > line=447 (Interpreted frame)
> > > > > - java.util.concurrent.ThreadLocalRandom.initialSeed() @bci=116,
> > > > > line=158 (Interpreted frame)
> > > > > - java.util.concurrent.ThreadLocalRandom.<clinit>() @bci=14,
> > > > > line=137
> > > > > (Interpreted frame)
> > > > > - java.util.concurrent.ConcurrentHashMap.fullAddCount(long,
> > > > > boolean) @bci=0, line=2526 (Interpreted frame)
> > > > > - java.util.concurrent.ConcurrentHashMap.addCount(long, int)
> > > > > @bci=104,
> > > > > line=2266 (Interpreted frame)
> > > > > - java.util.concurrent.ConcurrentHashMap.putVal(java.lang.Object,
> > > > > java.lang.Object, boolean) @bci=357, line=1070 (Interpreted
> > > > > frame) - java.util.concurrent.ConcurrentHashMap.putIfAbsent(
> > > > > java.lang.Object,
> > > > > java.lang.Object) @bci=4, line=1535 (Interpreted frame)
> > > > > - java.lang.ClassLoader.getClassLoadingLock(java.lang.String)
> > > > > @bci=23,
> > > > > line=463 (Interpreted frame)
> > > > > - java.lang.ClassLoader.loadClass(java.lang.String, boolean)
> > > > > @bci=2, line=404 (Interpreted frame)
> > > > > - java.lang.ClassLoader.loadClass(java.lang.String, boolean)
> > > > > @bci=38,
> > > > > line=411 (Interpreted frame)
> > > > > - sun.misc.Launcher$AppClassLoader.loadClass(java.lang.String,
> > > > > boolean) @bci=36, line=308 (Interpreted frame)
> > > > > - java.lang.ClassLoader.loadClass(java.lang.String) @bci=3,
> > > > > line=357 (Interpreted frame)
> > > > > -
> > > > > org.cliffc.high_scale_lib.NonBlockingHashMap$SnapshotK.<init>(org.
> > > > > 
> > > > cliffc.high_scale_lib.NonBlockingHashMap)
> > > > 
> > > > > @bci=10, line=1167 (Interpreted frame)
> > > > > - org.cliffc.high_scale_lib.NonBlockingHashMap$2.iterator()
> > > > > @bci=8, line=1200 (Interpreted frame)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceProcessor$EnqueGarbageTask.run()
> > > > > @bci=15, line=166 (Interpreted frame) -
> > > > > java.util.concurrent.Executors$RunnableAdapter.call() @bci=4,
> > > > > line=511 (Interpreted frame) -
> > > > > java.util.concurrent.FutureTask.runAndReset() @bci=47, line=308
> > > > > (Interpreted frame) -
> > > > > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTa
> > > > > sk.access$301(java.util.concurrent.ScheduledThreadPoolExecutor$Sch
> > > > > eduledFutureTask)
> > > > > @bci=1, line=180 (Interpreted frame)
> > > > > -
> > > > > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTa
> > > > > sk.run()
> > > > > @bci=37, line=294 (Interpreted frame)
> > > > > -
> > > > > java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concur
> > > > > rent.ThreadPoolExecutor$Worker)
> > > > > @bci=95, line=1142 (Interpreted frame)
> > > > > - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=5,
> > > > > line=617 (Interpreted frame)
> > > > > - java.lang.Thread.run() @bci=11, line=744 (Interpreted frame)
> > > > > 
> > > > > 
> > > > > Thread 4: (state = BLOCKED)
> > > > > - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
> > > > > - java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=142
> > > > > (Interpreted frame)
> > > > > - java.lang.ref.ReferenceQueue.remove() @bci=2, line=158
> > > > > (Interpreted
> > > > > frame)
> > > > > - java.lang.ref.Finalizer$FinalizerThread.run() @bci=36, line=209
> > > > > (Interpreted frame)
> > > > > 
> > > > > 
> > > > > Thread 3: (state = BLOCKED)
> > > > > - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
> > > > > - java.lang.Object.wait() @bci=2, line=502 (Interpreted frame)
> > > > > - java.lang.ref.Reference$ReferenceHandler.run() @bci=36,
> > > > > line=157 (Interpreted frame)
> > > > > 
> > > > > 
> > > > > Thread 1: (state = BLOCKED)
> > > > > - java.lang.ClassLoader.loadClass(java.lang.String, boolean)
> > > > > @bci=8, line=406 (Interpreted frame)
> > > > > - sun.misc.Launcher$AppClassLoader.loadClass(java.lang.String,
> > > > > boolean) @bci=36, line=308 (Interpreted frame)
> > > > > - java.lang.ClassLoader.loadClass(java.lang.String) @bci=3,
> > > > > line=357 (Interpreted frame)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceFactory.create(java.lang.Object,
> > > > > au.net.zeus.collection.RefQueue, au.net.zeus.collection.Ref)
> > > > > @bci=229, line=60 (Interpreted frame) -
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) @bci=37, line=128 (Interpreted frame)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) @bci=4, line=44 (Interpreted frame)
> > > > > - au.net.zeus.collection.ReferenceMap.wrapKey(java.lang.Object,
> > > > > boolean, boolean) @bci=7, line=248 (Interpreted frame)
> > > > > -
> > > > > au.net.zeus.collection.ReferenceConcurrentMap.putIfAbsent(java.lan
> > > > > g.Object,
> > > > > java.lang.Object) @bci=8, line=67 (Interpreted frame)
> > > > > -
> > > > > org.apache.river.api.security.CombinerSecurityManager.checkPermiss
> > > > > ion(java.security.Permission,
> > > > > java.lang.Object) @bci=161, line=260 (Interpreted frame)
> > > > > -
> > > > > org.apache.river.api.security.CombinerSecurityManager.checkPermiss
> > > > > ion(java.security.Permission)
> > > > > @bci=27, line=202 (Interpreted frame)
> > > > > - java.lang.System.checkIO() @bci=18, line=253 (Interpreted
> > > > > frame) - java.lang.System.setErr(java.io.PrintStream) @bci=0,
> > > > > line=199 (Interpreted frame)
> > > > > - com.sun.jini.qa.harness.MasterTest.main(java.lang.String[])
> > > > > @bci=9,
> > > > > line=84 (Interpreted frame)
> > > > > 
> > > > > The long version:
> > > > > 
> > > > > Attaching to process ID 7124, please wait...
> > > > > Debugger attached successfully.
> > > > > Client compiler detected.
> > > > > JVM version is 25.0-b70
> > > > > Deadlock Detection:
> > > > > 
> > > > > Found one Java-level deadlock:
> > > > > =============================
> > > > > 
> > > > > "main":
> > > > > waiting to lock Monitor at 0x0094bb2c (Object at 0x03d73c38, a
> > > > > java/lang/Object),
> > > > > which is held by "Thread-1"
> > > > > "Thread-1":
> > > > > waiting to lock Monitor at 0x0094c99c (Object at 0x03f02e50, a [I),
> > > > > which is held by "main"
> > > > > 
> > > > > Found a total of 1 deadlock.
> > > > > 
> > > > > ----------------- 0 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x00e64d7b       java + 0x4d7b
> > > > > 0x00e631ca       java + 0x31ca
> > > > > 0x00e642ab       java + 0x42ab
> > > > > 0x00e63440       java + 0x3440
> > > > > 0x00130138               ????????
> > > > > ----------------- 1 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6b3d       jvm!_JVM_FindSignal at 4 + 0x286d
> > > > > 0x5bf7857e       jvm!JVM_GetThreadStateNames + 0x4c12e
> > > > > 0x5bf78b23       jvm!JVM_GetThreadStateNames + 0x4c6d3
> > > > > 0x5bf8e107       jvm!JVM_GetThreadStateNames + 0x61cb7
> > > > > 0x5bf8e6be       jvm!JVM_GetThreadStateNames + 0x6226e
> > > > > 0x5bea1b28       jvm + 0x71b28
> > > > > 0x01aa1cef       * java.lang.ClassLoader.loadClass(java.lang.String,
> > > > > boolean) bci:8 line:406 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > sun.misc.Launcher$AppClassLoader.loadClass(java.lang.String,
> > > > > boolean) bci:36 line:308 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > java.lang.ClassLoader.loadClass(java.lang.String) bci:3 line:357
> > > > > (Interpreted frame) 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5bf724a6       jvm!JVM_GetThreadStateNames + 0x46056
> > > > > 0x5bf7258f       jvm!JVM_GetThreadStateNames + 0x4613f
> > > > > 0x5be77d6f       jvm + 0x47d6f
> > > > > 0x5be7822a       jvm + 0x4822a
> > > > > 0x5be794c0       jvm + 0x494c0
> > > > > 0x5be7950a       jvm + 0x4950a
> > > > > 0x5bf20de5       jvm!_JVM_FindClassFromClass at 16 + 0x135
> > > > > 0x73b515cd       verify + 0x15cd
> > > > > 0x73b51d53       verify + 0x1d53
> > > > > 0x73b52c67       verify + 0x2c67
> > > > > 0x14d6f5e8               ????????
> > > > > Locked ownable synchronizers:
> > > > > - None
> > > > > ----------------- 2 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6b3d       jvm!_JVM_FindSignal at 4 + 0x286d
> > > > > 0x5bf73ecc       jvm!JVM_GetThreadStateNames + 0x47a7c
> > > > > 0x5bf741fc       jvm!JVM_GetThreadStateNames + 0x47dac
> > > > > 0x5bf99671       jvm!JVM_GetThreadStateNames + 0x6d221
> > > > > 0x5bf99a32       jvm!JVM_GetThreadStateNames + 0x6d5e2
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > ----------------- 3 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6c49       jvm!_JVM_FindSignal at 4 + 0x2979
> > > > > 0x5bf78f56       jvm!JVM_GetThreadStateNames + 0x4cb06
> > > > > 0x5bf8e334       jvm!JVM_GetThreadStateNames + 0x61ee4
> > > > > 0x5bf20c15       jvm!_JVM_MonitorWait at 16 + 0x95
> > > > > 0x01a9ac63       * java.lang.Object.wait(long) bci:0 (Interpreted
> > > > > frame) 0x01a940f4       * java.lang.Object.wait() bci:2 line:502
> > > > > (Interpreted frame)
> > > > > 0x01a940f4       * java.lang.ref.Reference$ReferenceHandler.run()
> > > > > bci:36 line:157 (Interpreted frame)
> > > > > 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5bf724a6       jvm!JVM_GetThreadStateNames + 0x46056
> > > > > 0x5bf72517       jvm!JVM_GetThreadStateNames + 0x460c7
> > > > > 0x5bf1de0f       jvm!jio_printf + 0x9f
> > > > > 0x5bf945fc       jvm!JVM_GetThreadStateNames + 0x681ac
> > > > > 0x5bf94e8a       jvm!JVM_GetThreadStateNames + 0x68a3a
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > Locked ownable synchronizers:
> > > > > - None
> > > > > ----------------- 4 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6c49       jvm!_JVM_FindSignal at 4 + 0x2979
> > > > > 0x5bf78f56       jvm!JVM_GetThreadStateNames + 0x4cb06
> > > > > 0x5bf8e334       jvm!JVM_GetThreadStateNames + 0x61ee4
> > > > > 0x5bf20c15       jvm!_JVM_MonitorWait at 16 + 0x95
> > > > > 0x01a9ac63       * java.lang.Object.wait(long) bci:0 (Interpreted
> > > > > frame) 0x01a940f4       * java.lang.ref.ReferenceQueue.remove(long)
> > > > > bci:44 line:142 (Interpreted frame)
> > > > > 0x01a94054       * java.lang.ref.ReferenceQueue.remove() bci:2
> > > > > line:158 (Interpreted frame)
> > > > > 0x01a94054       * java.lang.ref.Finalizer$FinalizerThread.run()
> > > > > bci:36 line:209 (Interpreted frame)
> > > > > 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5bf724a6       jvm!JVM_GetThreadStateNames + 0x46056
> > > > > 0x5bf72517       jvm!JVM_GetThreadStateNames + 0x460c7
> > > > > 0x5bf1de0f       jvm!jio_printf + 0x9f
> > > > > 0x5bf945fc       jvm!JVM_GetThreadStateNames + 0x681ac
> > > > > 0x5bf94e8a       jvm!JVM_GetThreadStateNames + 0x68a3a
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > Locked ownable synchronizers:
> > > > > - None
> > > > > ----------------- 5 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6b3d       jvm!_JVM_FindSignal at 4 + 0x286d
> > > > > 0x5bf7857e       jvm!JVM_GetThreadStateNames + 0x4c12e
> > > > > 0x5bf78b23       jvm!JVM_GetThreadStateNames + 0x4c6d3
> > > > > 0x5bf8e107       jvm!JVM_GetThreadStateNames + 0x61cb7
> > > > > 0x5bf8e6be       jvm!JVM_GetThreadStateNames + 0x6226e
> > > > > 0x5bf8e78f       jvm!JVM_GetThreadStateNames + 0x6233f
> > > > > 0x5bee0d10       jvm + 0xb0d10
> > > > > 0x5bee2854       jvm + 0xb2854
> > > > > 0x5bee3548       jvm + 0xb3548
> > > > > 0x5bea5641       jvm + 0x75641
> > > > > 0x01aa17be       *
> > > > > au.net.zeus.collection.ReferenceFactory.create(java.lang.Object,
> > > > > au.net.zeus.collection.RefQueue, au.net.zeus.collection.Ref)
> > > > > bci:229 line:60 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) bci:37 line:128 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) bci:4 line:44 (Interpreted frame)
> > > > > 0x01a94089       *
> > > > > au.net.zeus.collection.ReferenceMap.wrapKey(java.lang.Object,
> > > > > boolean, boolean) bci:7 line:248 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > au.net.zeus.collection.ReferenceConcurrentMap.putIfAbsent(java.lan
> > > > > g.Object,
> > > > > java.lang.Object) bci:8 line:67 (Interpreted frame)
> > > > > 0x01a94089       *
> > > > > org.apache.river.api.security.CombinerSecurityManager.checkPermiss
> > > > > ion(java.security.Permission,
> > > > > java.lang.Object) bci:161 line:260 (Interpreted frame)
> > > > > 0x01a940f4       *
> > > > > org.apache.river.api.security.CombinerSecurityManager.checkPermiss
> > > > > ion(java.security.Permission)
> > > > > bci:27 line:202 (Interpreted frame)
> > > > > 0x01a940f4       * java.net.NetworkInterface.getHardwareAddress()
> > > > > bci:18 line:447 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > java.util.concurrent.ThreadLocalRandom.initialSeed() bci:116
> > > > > line:158 (Interpreted frame) 0x01a93e20       *
> > > > > java.util.concurrent.ThreadLocalRandom.<clinit>() bci:14
> > > > > line:137 (Interpreted frame)
> > > > > 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5bee0f44       jvm + 0xb0f44
> > > > > 0x5bee2b21       jvm + 0xb2b21
> > > > > 0x5bee3548       jvm + 0xb3548
> > > > > 0x5bea9796       jvm + 0x79796
> > > > > 0x5beaa7b2       jvm + 0x7a7b2
> > > > > 0x5bea5dc7       jvm + 0x75dc7
> > > > > 0x01aa12ae       *
> > > > > java.util.concurrent.ConcurrentHashMap.fullAddCount(long,
> > > > > boolean) bci:0
> > > > > line:2526 (Interpreted frame)
> > > > > 0x01a940f4       *
> > > > > java.util.concurrent.ConcurrentHashMap.addCount(long, int)
> > > > > bci:104 line:2266 (Interpreted frame) 0x01a940f4       *
> > > > > java.util.concurrent.ConcurrentHashMap.putVal(java.lang.Object,
> > > > > java.lang.Object, boolean) bci:357 line:1070 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > java.util.concurrent.ConcurrentHashMap.putIfAbsent(java.lang.Object,
> > > > > java.lang.Object) bci:4 line:1535 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > java.lang.ClassLoader.getClassLoadingLock(java.lang.String)
> > > > > bci:23 line:463 (Interpreted frame)
> > > > > 0x01a94054       * java.lang.ClassLoader.loadClass(java.lang.String,
> > > > > boolean) bci:2 line:404 (Interpreted frame)
> > > > > 0x01a94054       * java.lang.ClassLoader.loadClass(java.lang.String,
> > > > > boolean) bci:38 line:411 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > sun.misc.Launcher$AppClassLoader.loadClass(java.lang.String,
> > > > > boolean) bci:36 line:308 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > java.lang.ClassLoader.loadClass(java.lang.String) bci:3 line:357
> > > > > (Interpreted frame) 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5bf724a6       jvm!JVM_GetThreadStateNames + 0x46056
> > > > > 0x5bf7258f       jvm!JVM_GetThreadStateNames + 0x4613f
> > > > > 0x5be77d6f       jvm + 0x47d6f
> > > > > 0x5be7822a       jvm + 0x4822a
> > > > > 0x5be794c0       jvm + 0x494c0
> > > > > 0x5be7950a       jvm + 0x4950a
> > > > > 0x5be79f66       jvm + 0x49f66
> > > > > 0x5be715c7       jvm + 0x415c7
> > > > > 0x5be7a53c       jvm + 0x4a53c
> > > > > 0x5be817e2       jvm + 0x517e2
> > > > > 0x5be822d9       jvm + 0x522d9
> > > > > 0x5be82414       jvm + 0x52414
> > > > > 0x5bed85dd       jvm + 0xa85dd
> > > > > 0x5bee0d80       jvm + 0xb0d80
> > > > > 0x5bee2854       jvm + 0xb2854
> > > > > 0x5bee3548       jvm + 0xb3548
> > > > > 0x5bea5641       jvm + 0x75641
> > > > > 0x01aa17be       *
> > > > > org.cliffc.high_scale_lib.NonBlockingHashMap$SnapshotK.<init>(org.
> > > > > 
> > > > cliffc.high_scale_lib.NonBlockingHashMap)
> > > > 
> > > > > bci:10 line:1167 (Interpreted frame)
> > > > > 0x01a940f4       *
> > > > > org.cliffc.high_scale_lib.NonBlockingHashMap$2.iterator() bci:8
> > > > > line:1200 (Interpreted frame)
> > > > > 0x01a94089       *
> > > > > au.net.zeus.collection.ReferenceProcessor$EnqueGarbageTask.run()
> > > > > bci:15 line:166 (Interpreted frame)
> > > > > 0x01a94129       *
> > > > > java.util.concurrent.Executors$RunnableAdapter.call() bci:4
> > > > > line:511 (Interpreted frame) 0x01a94089       *
> > > > > java.util.concurrent.FutureTask.runAndReset() bci:47 line:308
> > > > > (Interpreted frame) 0x01a93ba0       *
> > > > > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTa
> > > > > sk.access$301(java.util.concurrent.ScheduledThreadPoolExecutor$Sch
> > > > > eduledFutureTask)
> > > > > bci:1 line:180 (Interpreted frame)
> > > > > 0x01a93ba0       *
> > > > > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTa
> > > > > sk.run()
> > > > > bci:37 line:294 (Interpreted frame)
> > > > > 0x01a94129       *
> > > > > java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concur
> > > > > rent.ThreadPoolExecutor$Worker)
> > > > > bci:95 line:1142 (Interpreted frame)
> > > > > 0x01a940f4       *
> > > > > java.util.concurrent.ThreadPoolExecutor$Worker.run() bci:5
> > > > > line:617 (Interpreted frame) 0x01a94129       *
> > > > > java.lang.Thread.run() bci:11 line:744 (Interpreted frame)
> > > > > 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5bf724a6       jvm!JVM_GetThreadStateNames + 0x46056
> > > > > 0x5bf72517       jvm!JVM_GetThreadStateNames + 0x460c7
> > > > > 0x5bf1de0f       jvm!jio_printf + 0x9f
> > > > > 0x5bf945fc       jvm!JVM_GetThreadStateNames + 0x681ac
> > > > > 0x5bf94e8a       jvm!JVM_GetThreadStateNames + 0x68a3a
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > Locked ownable synchronizers:
> > > > > - <0x03d58650>, (a java/util/concurrent/
> > > > > ThreadPoolExecutor$Worker)
> > > > > ----------------- 6 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > ----------------- 7 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd9539       jvm!_JVM_FindSignal at 4 + 0x5269
> > > > > 0x5bfd9607       jvm!_JVM_FindSignal at 4 + 0x5337
> > > > > 0x5bf945fc       jvm!JVM_GetThreadStateNames + 0x681ac
> > > > > 0x5bf94e8a       jvm!JVM_GetThreadStateNames + 0x68a3a
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > Locked ownable synchronizers:
> > > > > - None
> > > > > ----------------- 8 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6c49       jvm!_JVM_FindSignal at 4 + 0x2979
> > > > > 0x5bf7856b       jvm!JVM_GetThreadStateNames + 0x4c11b
> > > > > 0x5bf78b23       jvm!JVM_GetThreadStateNames + 0x4c6d3
> > > > > 0x5bf8e107       jvm!JVM_GetThreadStateNames + 0x61cb7
> > > > > 0x5bf8e6be       jvm!JVM_GetThreadStateNames + 0x6226e
> > > > > 0x5bf8e78f       jvm!JVM_GetThreadStateNames + 0x6233f
> > > > > 0x5bee0d10       jvm + 0xb0d10
> > > > > 0x5bee2854       jvm + 0xb2854
> > > > > 0x5bee3548       jvm + 0xb3548
> > > > > 0x5bea5641       jvm + 0x75641
> > > > > 0x01aa17be       *
> > > > > au.net.zeus.collection.ReferenceFactory.create(java.lang.Object,
> > > > > au.net.zeus.collection.RefQueue, au.net.zeus.collection.Ref)
> > > > > bci:229 line:60 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) bci:37 line:128 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > au.net.zeus.collection.ReferenceProcessor.referenced(java.lang.Object,
> > > > > boolean, boolean) bci:4 line:44 (Interpreted frame)
> > > > > 0x01a94089       *
> > > > > au.net.zeus.collection.ReferenceMap.wrapKey(java.lang.Object,
> > > > > boolean, boolean) bci:7 line:248 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > au.net.zeus.collection.ReferenceConcurrentMap.putIfAbsent(java.lan
> > > > > g.Object,
> > > > > java.lang.Object) bci:8 line:67 (Interpreted frame)
> > > > > 0x01a94089       *
> > > > > org.apache.river.api.security.CombinerSecurityManager.checkPermiss
> > > > > ion(java.security.Permission,
> > > > > java.lang.Object) bci:161 line:260 (Interpreted frame)
> > > > > 0x01a940f4       *
> > > > > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.checkMBeanTr
> > > > > ustPermission(java.lang.Class)
> > > > > bci:59 line:1848 (Interpreted frame)
> > > > > 0x01a940f4       *
> > > > > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBea
> > > > > n(java.lang.Object,
> > > > > javax.management.ObjectName) bci:25 line:322 (Interpreted frame)
> > > > > 0x01a94089       * com.sun.jmx.mbeanserver.JmxMBeanServer$2.run()
> > > > > bci:17 line:1225 (Interpreted frame)
> > > > > 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5bf299ed       jvm!_JVM_DoPrivileged at 20 + 0x2bd
> > > > > 0x73b21047
> > > > > java_73b20000!_Java_java_security_AccessController_doPrivileged__L
> > > > > java_security_PrivilegedExceptionAction_2 at 12
> > > > > + 0x15
> > > > > 0x01a94054       *
> > > > > com.sun.jmx.mbeanserver.JmxMBeanServer.initialize() bci:25
> > > > > line:1223 (Interpreted frame) 0x01a940f4       *
> > > > > com.sun.jmx.mbeanserver.JmxMBeanServer.<init>(java.lang.String,
> > > > > javax.management.MBeanServer,
> > > > > javax.management.MBeanServerDelegate,
> > > > > com.sun.jmx.mbeanserver.MBeanInstantiator, boolean, boolean)
> > > > > bci:133 line:255 (Interpreted frame) 0x01a940f4       *
> > > > > com.sun.jmx.mbeanserver.JmxMBeanServer.newMBeanServer(java.lang.String,
> > > > > javax.management.MBeanServer,
> > > > > javax.management.MBeanServerDelegate, boolean) bci:13 line:1437
> > > > > (Interpreted frame) 0x01a94054       *
> > > > > javax.management.MBeanServerBuilder.newMBeanServer(java.lang.String,
> > > > > javax.management.MBeanServer,
> > > > > javax.management.MBeanServerDelegate) bci:4 line:110
> > > > > (Interpreted frame) 0x01a94054       *
> > > > > javax.management.MBeanServerFactory.newMBeanServer(java.lang.String)
> > > > > bci:36 line:329 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > javax.management.MBeanServerFactory.createMBeanServer(java.lang.String)
> > > > > bci:6 line:231 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > javax.management.MBeanServerFactory.createMBeanServer() bci:1
> > > > > line:192 (Interpreted frame) 0x01a94054       *
> > > > > java.lang.management.ManagementFactory.getPlatformMBeanServer()
> > > > > bci:29 line:468 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > sun.management.jmxremote.ConnectorBootstrap.startLocalConnectorServer()
> > > > > bci:66 line:518 (Interpreted frame)
> > > > > 0x01a94054       * sun.management.Agent.startLocalManagementAgent()
> > > > > bci:13 line:138 (Interpreted frame)
> > > > > 0x01a940f4       *
> > > > > sun.management.Agent.startAgent(java.util.Properties) bci:76
> > > > > line:260 (Interpreted frame) 0x01a940f4       *
> > > > > sun.management.Agent.agentmain(java.lang.String) bci:45 line:128
> > > > > (Interpreted frame) 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5bf7e73a       jvm!JVM_GetThreadStateNames + 0x522ea
> > > > > 0x5bf7e993       jvm!JVM_GetThreadStateNames + 0x52543
> > > > > 0x5bf22b03       jvm!_JVM_InvokeMethod at 16 + 0xb3
> > > > > 0x73b23a6e
> > > > > java_73b20000!_Java_sun_reflect_NativeMethodAccessorImpl_invoke0 at 20
> > > > > + 0x15
> > > > > 0x01a94054       *
> > > > > sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object,
> > > > > java.lang.Object[]) bci:100 line:62 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object,
> > > > > java.lang.Object[]) bci:6 line:43 (Interpreted frame)
> > > > > 0x01a94089       * java.lang.reflect.Method.invoke(java.lang.Object,
> > > > > java.lang.Object[]) bci:56 line:483 (Interpreted frame)
> > > > > 0x01a94054       *
> > > > > sun.instrument.InstrumentationImpl.loadClassAndStartAgent(java.lan
> > > > > g.String,
> > > > > java.lang.String, java.lang.String) bci:192 line:388
> > > > > (Interpreted frame) 0x01a940f4       *
> > > > > sun.instrument.InstrumentationImpl.loadClassAndCallAgentmain(java.
> > > > > lang.String,
> > > > > java.lang.String) bci:5 line:411 (Interpreted frame)
> > > > > 0x01a903d7 <StubRoutines>
> > > > > 0x5bf72285       jvm!JVM_GetThreadStateNames + 0x45e35
> > > > > 0x5c0370be       jvm!_JVM_FindSignal at 4 + 0x62dee
> > > > > 0x5bf7231e       jvm!JVM_GetThreadStateNames + 0x45ece
> > > > > 0x5befe951       jvm!JNI_GetCreatedJavaVMs + 0x71a1
> > > > > 0x5bf01788       jvm!JNI_GetCreatedJavaVMs + 0x9fd8
> > > > > 0x6db62878       instrument!Agent_OnAttach + 0x76b
> > > > > 0x6db63eea       instrument!Agent_OnAttach + 0x1ddd
> > > > > 0x6db6234a       instrument!Agent_OnAttach + 0x23d
> > > > > 0x5bf3c50c       jvm!JVM_GetThreadStateNames + 0x100bc
> > > > > 0x5bf9b05e       jvm!JVM_GetThreadStateNames + 0x6ec0e
> > > > > 0x5bf945fc       jvm!JVM_GetThreadStateNames + 0x681ac
> > > > > 0x5bf94e8a       jvm!JVM_GetThreadStateNames + 0x68a3a
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > Locked ownable synchronizers:
> > > > > - None
> > > > > ----------------- 9 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6b3d       jvm!_JVM_FindSignal at 4 + 0x286d
> > > > > 0x5bf73ecc       jvm!JVM_GetThreadStateNames + 0x47a7c
> > > > > 0x5bf7424a       jvm!JVM_GetThreadStateNames + 0x47dfa
> > > > > 0x5be9253b       jvm + 0x6253b
> > > > > 0x5bf945fc       jvm!JVM_GetThreadStateNames + 0x681ac
> > > > > 0x5bf94e8a       jvm!JVM_GetThreadStateNames + 0x68a3a
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > Locked ownable synchronizers:
> > > > > - None
> > > > > ----------------- 10 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6c49       jvm!_JVM_FindSignal at 4 + 0x2979
> > > > > 0x5bf73ec1       jvm!JVM_GetThreadStateNames + 0x47a71
> > > > > 0x5bf741fc       jvm!JVM_GetThreadStateNames + 0x47dac
> > > > > 0x5bf829a5       jvm!JVM_GetThreadStateNames + 0x56555
> > > > > 0x5bf945fc       jvm!JVM_GetThreadStateNames + 0x681ac
> > > > > 0x5bf94e8a       jvm!JVM_GetThreadStateNames + 0x68a3a
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > Locked ownable synchronizers:
> > > > > - None
> > > > > ----------------- 11 -----------------
> > > > > 0x77c870f4       ntdll!KiFastSystemCallRet
> > > > > 0x76a9c3d3       kernel32!WaitForSingleObjectEx + 0x43
> > > > > 0x76a9c382       kernel32!WaitForSingleObject + 0x12
> > > > > 0x5bfd6b3d       jvm!_JVM_FindSignal at 4 + 0x286d
> > > > > 0x5bf73ecc       jvm!JVM_GetThreadStateNames + 0x47a7c
> > > > > 0x5bf741fc       jvm!JVM_GetThreadStateNames + 0x47dac
> > > > > 0x5bf8f904       jvm!JVM_GetThreadStateNames + 0x634b4
> > > > > 0x5bf8f9a7       jvm!JVM_GetThreadStateNames + 0x63557
> > > > > 0x5bfd9186       jvm!_JVM_FindSignal at 4 + 0x4eb6
> > > > > 0x614dc556       msvcr100!_endthreadex + 0x3a
> > > > > 0x614dc600       msvcr100!_endthreadex + 0xe4
> > > > > 0x76a9ee1c       kernel32!BaseThreadInitThunk + 0x12
> > > > > 0x77ca37eb       ntdll!RtlInitializeExceptionChain + 0xef
> > > > > 0x77ca37be       ntdll!RtlInitializeExceptionChain + 0xc2
> > > > > 
> > > > > 
> > > > > _______________________________________________
> > > > > Concurrency-interest mailing list
> > > > > Concurrency-interest at cs.oswego.edu
> > > > > http://cs.oswego.edu/mailman/listinfo/concurrency-interest
> > > > > 
> > > > _______________________________________________
> > > > Concurrency-interest mailing list
> > > > Concurrency-interest at cs.oswego.edu
> > > > http://cs.oswego.edu/mailman/listinfo/concurrency-interest
> > > > 
> > > 
> > > 
> > _______________________________________________
> > Concurrency-interest mailing list
> > Concurrency-interest at cs.oswego.edu
> > http://cs.oswego.edu/mailman/listinfo/concurrency-interest
> > 

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