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Tomcat errors when stopping with log4j2 gelf appender

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Dec 2nd, 2016
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  1. 02-Dec-2016 11:48:14.385 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [app-context] appears to have started a thread named [gelfUdpTransport-1-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
  2. sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method)
  3. sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198)
  4. sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:103)
  5. sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
  6. sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
  7. io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:759)
  8. io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:400)
  9. io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873)
  10. io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  11. java.lang.Thread.run(Thread.java:745)
  12. 02-Dec-2016 11:48:14.385 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [app-context] appears to have started a thread named [GelfSenderThread-39] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
  13. sun.misc.Unsafe.park(Native Method)
  14. java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
  15. java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
  16. java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467)
  17. org.graylog2.gelfclient.transport.GelfSenderThread$1.run(GelfSenderThread.java:93)
  18. java.lang.Thread.run(Thread.java:745)
  19. 02-Dec-2016 11:48:14.386 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [app-context] appears to have started a thread named [threadDeathWatcher-3-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
  20. java.lang.Thread.sleep(Native Method)
  21. io.netty.util.ThreadDeathWatcher$Watcher.run(ThreadDeathWatcher.java:150)
  22. io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  23. java.lang.Thread.run(Thread.java:745)
  24. 02-Dec-2016 11:48:14.386 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [app-context] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@354eed10]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@64239853]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
  25. 02-Dec-2016 11:48:14.395 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-127.0.0.1-8080"]
  26. 02-Dec-2016 11:48:14.433 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8080"]
  27. 02-Dec-2016 11:48:15.526 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-127.0.0.1-8080"]
  28. 02-Dec-2016 11:48:15.526 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8080"]
  29. 02-Dec-2016 11:48:15.528 SEVERE [main] org.apache.coyote.AbstractProtocol.destroy Failed to destroy end point associated with ProtocolHandler ["http-nio-8080"]
  30. java.io.IOException: Unknown error: 316
  31. at sun.nio.ch.NativeThread.signal(Native Method)
  32. at sun.nio.ch.ServerSocketChannelImpl.implCloseSelectableChannel(ServerSocketChannelImpl.java:292)
  33. at java.nio.channels.spi.AbstractSelectableChannel.implCloseChannel(AbstractSelectableChannel.java:234)
  34. at java.nio.channels.spi.AbstractInterruptibleChannel.close(AbstractInterruptibleChannel.java:115)
  35. at sun.nio.ch.ServerSocketAdaptor.close(ServerSocketAdaptor.java:137)
  36. at org.apache.tomcat.util.net.NioEndpoint.unbind(NioEndpoint.java:488)
  37. at org.apache.tomcat.util.net.AbstractEndpoint.destroy(AbstractEndpoint.java:821)
  38. at org.apache.coyote.AbstractProtocol.destroy(AbstractProtocol.java:534)
  39. at org.apache.catalina.connector.Connector.destroyInternal(Connector.java:1023)
  40. at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
  41. at org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:589)
  42. at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
  43. at org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:877)
  44. at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
  45. at org.apache.catalina.startup.Catalina.stop(Catalina.java:703)
  46. at org.apache.catalina.startup.Catalina.start(Catalina.java:664)
  47. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  48. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  49. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  50. at java.lang.reflect.Method.invoke(Method.java:497)
  51. at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:351)
  52. at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485)
  53.  
  54. Exception in thread "gelfUdpTransport-1-1" java.lang.NoClassDefFoundError: io/netty/buffer/PoolArena$1
  55. at io.netty.buffer.PoolArena.freeChunk(PoolArena.java:279)
  56. at io.netty.buffer.PoolThreadCache$MemoryRegionCache.freeEntry(PoolThreadCache.java:456)
  57. at io.netty.buffer.PoolThreadCache$MemoryRegionCache.free(PoolThreadCache.java:426)
  58. at io.netty.buffer.PoolThreadCache$MemoryRegionCache.free(PoolThreadCache.java:418)
  59. at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:275)
  60. at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:266)
  61. at io.netty.buffer.PoolThreadCache.free0(PoolThreadCache.java:239)
  62. at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:235)
  63. at io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:359)
  64. at io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:345)
  65. at io.netty.util.concurrent.FastThreadLocal.remove(FastThreadLocal.java:226)
  66. at io.netty.util.concurrent.FastThreadLocal.removeAll(FastThreadLocal.java:67)
  67. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:146)
  68. at java.lang.Thread.run(Thread.java:745)
  69. Caused by: java.lang.ClassNotFoundException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.buffer.PoolArena$1]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
  70. at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1342)
  71. at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1205)
  72. at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1166)
  73. ... 14 more
  74. Caused by: java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.buffer.PoolArena$1]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
  75. at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1352)
  76. at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1340)
  77. ... 16 more
  78. Exception in thread "gelfUdpTransport-1-11" Exception in thread "gelfUdpTransport-1-15" Exception in thread "gelfUdpTransport-1-3" Exception in thread "gelfUdpTransport-1-16" Exception in thread "gelfUdpTransport-1-5" Exception in thread "gelfUdpTransport-1-10" Exception in thread "gelfUdpTransport-1-13" Exception in thread "gelfUdpTransport-1-2" Exception in thread "gelfUdpTransport-1-8" Exception in thread "gelfUdpTransport-1-7" Exception in thread "gelfUdpTransport-1-6" Exception in thread "gelfUdpTransport-1-14" java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  79. Exception in thread "gelfUdpTransport-1-12" Exception in thread "gelfUdpTransport-1-9" Exception in thread "gelfUdpTransport-1-4" at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  80. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  81. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  82. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  83. at java.lang.Thread.run(Thread.java:745)
  84. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  85. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  86. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  87. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  88. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  89. at java.lang.Thread.run(Thread.java:745)
  90. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  91. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  92. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  93. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  94. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  95. at java.lang.Thread.run(Thread.java:745)
  96. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  97. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  98. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  99. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  100. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  101. at java.lang.Thread.run(Thread.java:745)
  102. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  103. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  104. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  105. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  106. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  107. at java.lang.Thread.run(Thread.java:745)
  108. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  109. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  110. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  111. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  112. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  113. at java.lang.Thread.run(Thread.java:745)
  114. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  115. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  116. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  117. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  118. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  119. at java.lang.Thread.run(Thread.java:745)
  120. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  121. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  122. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  123. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  124. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  125. at java.lang.Thread.run(Thread.java:745)
  126. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  127. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  128. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  129. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  130. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  131. at java.lang.Thread.run(Thread.java:745)
  132. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  133. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  134. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  135. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  136. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  137. at java.lang.Thread.run(Thread.java:745)
  138. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  139. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  140. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  141. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  142. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  143. at java.lang.Thread.run(Thread.java:745)
  144. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  145. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  146. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  147. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  148. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  149. at java.lang.Thread.run(Thread.java:745)
  150. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  151. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  152. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  153. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  154. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  155. at java.lang.Thread.run(Thread.java:745)
  156. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  157. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  158. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  159. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  160. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  161. at java.lang.Thread.run(Thread.java:745)
  162. java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$1
  163. at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:435)
  164. at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:102)
  165. at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:912)
  166. at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
  167. at java.lang.Thread.run(Thread.java:745)
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