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From Konstantin Preißer <kpreis...@apache.org>
Subject RE: svn commit: r1530081 - /tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java
Date Thu, 10 Oct 2013 17:33:34 GMT
Hi Mark,

> -----Original Message-----
> From: Mark Thomas [mailto:markt@apache.org]
> Sent: Thursday, October 10, 2013 7:11 PM

> > What is interesting is that after this happens and I telnet to the
> > server for manually sending a request, then every (2n)th TCP
> > connection works (Tomcat replies and closes the connection after the
> > 20s timeout), but every (2n + 1)th connection does not work (there
> > Tomcat does not respond and is never half-closing the connection).
> 
> Now that is very interesting. It suggests one of the two Pollers has
> locked up somehow. Could you take a thread dump when this happens as I
> can't reproduce it. I'd love to know what that thread is doing.

Sure, here is a thread dump taken after the problems occured (Note: I modified the default
server.xml to remove the AJP connector and for the HTTP connector change the port from 8080
to 8783 - that were the only changes I made).


2013-10-10 19:31:49
Full thread dump Java HotSpot(TM) 64-Bit Server VM (24.0-b56 mixed mode):

"http-nio-8783-exec-10" daemon prio=6 tid=0x000000000b00b800 nid=0x2294 waiting on condition
[0x000000000d76f000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-exec-9" daemon prio=6 tid=0x0000000009c8d800 nid=0x175c waiting on condition
[0x000000000ca2e000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-exec-8" daemon prio=6 tid=0x0000000009c8c800 nid=0x2388 waiting on condition
[0x000000000d3df000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-exec-7" daemon prio=6 tid=0x0000000009c8c000 nid=0x1770 waiting on condition
[0x000000000d54f000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-exec-6" daemon prio=6 tid=0x0000000009c8b000 nid=0x1040 waiting on condition
[0x000000000be9e000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-exec-5" daemon prio=6 tid=0x0000000009c8a800 nid=0x2174 waiting on condition
[0x000000000d2af000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-exec-4" daemon prio=6 tid=0x0000000009c89800 nid=0x1c98 waiting on condition
[0x000000000d1af000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"pool-1-thread-1" prio=6 tid=0x0000000009c88000 nid=0x1940 waiting on condition [0x000000000c40e000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c123def8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"Java2D Disposer" daemon prio=10 tid=0x0000000009c87800 nid=0x1808 in Object.wait() [0x000000000cf8f000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000c18ef110> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
	- locked <0x00000000c18ef110> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
	at sun.java2d.Disposer.run(Disposer.java:145)
	at java.lang.Thread.run(Thread.java:724)

"Timer-0" daemon prio=6 tid=0x0000000009c86800 nid=0x1458 in Object.wait() [0x000000000cddf000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.util.TimerThread.mainLoop(Timer.java:552)
	- locked <0x00000000c123dc80> (a java.util.TaskQueue)
	at java.util.TimerThread.run(Timer.java:505)

"http-nio-8783-exec-3" daemon prio=6 tid=0x000000000b025000 nid=0x22d8 waiting on condition
[0x000000000adcf000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-exec-2" daemon prio=6 tid=0x000000000b066800 nid=0x2144 waiting on condition
[0x000000000ccbf000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-exec-1" daemon prio=6 tid=0x000000000a8c5000 nid=0x1980 waiting on condition
[0x000000000bf9f000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c14cd958> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
	at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-Acceptor-0" daemon prio=6 tid=0x000000000b061000 nid=0xb3c runnable [0x000000000cb3f000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
	at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:241)
	- locked <0x00000000c0d5b690> (a java.lang.Object)
	at org.apache.tomcat.util.net.NioEndpoint$Acceptor.run(NioEndpoint.java:714)
	at java.lang.Thread.run(Thread.java:724)

"http-nio-8783-ClientPoller-0" daemon prio=6 tid=0x000000000af9b000 nid=0x1628 runnable [0x000000000c7de000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278)
	at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
	- locked <0x00000000c120a300> (a sun.nio.ch.Util$2)
	- locked <0x00000000c120a2f0> (a java.util.Collections$UnmodifiableSet)
	- locked <0x00000000c120a0b0> (a sun.nio.ch.WindowsSelectorImpl)
	at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
	at org.apache.tomcat.util.net.NioEndpoint$Poller.run(NioEndpoint.java:1074)
	at java.lang.Thread.run(Thread.java:724)

"ContainerBackgroundProcessor[StandardEngine[Catalina]]" daemon prio=6 tid=0x000000000aadb000
nid=0xa08 waiting on condition [0x000000000c65f000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
	at java.lang.Thread.sleep(Native Method)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1331)
	at java.lang.Thread.run(Thread.java:724)

"Thread-4" daemon prio=6 tid=0x000000000a87c000 nid=0x520 runnable [0x000000000a2af000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.Iocp.getQueuedCompletionStatus(Native Method)
	at sun.nio.ch.Iocp.access$300(Iocp.java:46)
	at sun.nio.ch.Iocp$EventHandlerTask.run(Iocp.java:333)
	at java.lang.Thread.run(Thread.java:724)

"NioBlockingSelector.BlockPoller-1" daemon prio=6 tid=0x000000000a73b000 nid=0x1c08 runnable
[0x0000000009daf000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278)
	at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
	- locked <0x00000000c0d59f90> (a sun.nio.ch.Util$2)
	- locked <0x00000000c0d59f80> (a java.util.Collections$UnmodifiableSet)
	- locked <0x00000000c0d59e10> (a sun.nio.ch.WindowsSelectorImpl)
	at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
	at org.apache.tomcat.util.net.NioBlockingSelector$BlockPoller.run(NioBlockingSelector.java:342)

"GC Daemon" daemon prio=2 tid=0x0000000009b84000 nid=0x10e8 in Object.wait() [0x000000000ac9f000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000c0590030> (a sun.misc.GC$LatencyLock)
	at sun.misc.GC$Daemon.run(GC.java:117)
	- locked <0x00000000c0590030> (a sun.misc.GC$LatencyLock)

"AsyncFileHandlerWriter-982344655" daemon prio=6 tid=0x0000000009943800 nid=0x2040 waiting
on condition [0x0000000009eae000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c03d5648> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2082)
	at java.util.concurrent.LinkedBlockingDeque.pollFirst(LinkedBlockingDeque.java:519)
	at java.util.concurrent.LinkedBlockingDeque.poll(LinkedBlockingDeque.java:682)
	at org.apache.juli.AsyncFileHandler$LoggerThread.run(AsyncFileHandler.java:147)

"Service Thread" daemon prio=6 tid=0x00000000082f2000 nid=0x2148 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread1" daemon prio=10 tid=0x00000000082eb000 nid=0x1348 waiting on condition
[0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread0" daemon prio=10 tid=0x00000000082e2000 nid=0x15bc waiting on condition
[0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Attach Listener" daemon prio=10 tid=0x00000000082df000 nid=0x2268 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Signal Dispatcher" daemon prio=10 tid=0x00000000082dd800 nid=0x204c runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Finalizer" daemon prio=8 tid=0x00000000021af000 nid=0x1a34 in Object.wait() [0x00000000090ef000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
	- locked <0x00000000c03e2d90> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:189)

"Reference Handler" daemon prio=10 tid=0x00000000021ab800 nid=0x1020 in Object.wait() [0x0000000008cee000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:503)
	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)
	- locked <0x00000000c03e2850> (a java.lang.ref.Reference$Lock)

"main" prio=6 tid=0x000000000220f000 nid=0x33c runnable [0x000000000248e000]
   java.lang.Thread.State: RUNNABLE
	at java.net.DualStackPlainSocketImpl.accept0(Native Method)
	at java.net.DualStackPlainSocketImpl.socketAccept(DualStackPlainSocketImpl.java:131)
	at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
	at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:198)
	- locked <0x00000000c18e5c58> (a java.net.SocksSocketImpl)
	at java.net.ServerSocket.implAccept(ServerSocket.java:530)
	at java.net.ServerSocket.accept(ServerSocket.java:498)
	at org.apache.catalina.core.StandardServer.await(StandardServer.java:437)
	at org.apache.catalina.startup.Catalina.await(Catalina.java:746)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:692)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:352)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:486)

"VM Thread" prio=10 tid=0x0000000008282000 nid=0x1f38 runnable 

"GC task thread#0 (ParallelGC)" prio=6 tid=0x00000000020e6000 nid=0x1b08 runnable 

"GC task thread#1 (ParallelGC)" prio=6 tid=0x00000000020e7800 nid=0x182c runnable 

"VM Periodic Task Thread" prio=10 tid=0x0000000008303800 nid=0x2104 waiting on condition 

JNI global references: 400



Regards,
Konstantin Preißer


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