frequently Jenkins job is hanging, i have to abort and restart the job, after couple of builds again job is hanging. attached thread dump. I am not sure what is causing. I would appreciate your help in this regard.
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Thread Dump cmd.exe /C "C:\Apache\apache-ant-1.9.1\bin\ant.bat -file build.xml -keep-going main ci.run.ff && exit %%ERRORLEVEL%%": stdout copier "cmd.exe /C "C:\Apache\apache-ant-1.9.1\bin\ant.bat -file build.xml -keep-going main ci.run.ff && exit %%ERRORLEVEL%%": stdout copier" Id=1729 Group=main RUNNABLE (in native) at java.io.FileInputStream.readBytes(Native Method) at java.io.FileInputStream.read(Unknown Source) at java.io.BufferedInputStream.read1(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) - locked java.io.BufferedInputStream@10e8c8c at java.io.FilterInputStream.read(Unknown Source) at hudson.util.StreamCopyThread.run(StreamCopyThread.java:60) ConnectorThread:[http-8083] "ConnectorThread:[http-8083]" Id=12 Group=main RUNNABLE (in native) at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(Unknown Source) - locked java.net.SocksSocketImpl@11a8dd1 at java.net.ServerSocket.implAccept(Unknown Source) at java.net.ServerSocket.accept(Unknown Source) at winstone.HttpListener.run(HttpListener.java:139) at java.lang.Thread.run(Unknown Source) DestroyJavaVM "DestroyJavaVM" Id=15 Group=main RUNNABLE Executor #0 for master : executing dui_rel7_testscripts_ff #25 "Executor #0 for master : executing dui_rel7_testscripts_ff #25" Id=26 Group=main RUNNABLE (in native) at java.lang.ProcessImpl.waitFor(Native Method) at hudson.Proc$LocalProc.join(Proc.java:319) at hudson.Launcher$ProcStarter.join(Launcher.java:360) at hudson.tasks.Ant.perform(Ant.java:217) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:782) at hudson.model.Build$BuildExecution.build(Build.java:199) at hudson.model.Build$BuildExecution.doRun(Build.java:160) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:567) at hudson.model.Run.execute(Run.java:1603) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:246) Executor #1 for master "Executor #1 for master" Id=27 Group=main WAITING on hudson.model.Queue@149b5b9 at java.lang.Object.wait(Native Method) - waiting on hudson.model.Queue@149b5b9 at java.lang.Object.wait(Object.java:485) at hudson.util.OneShotEvent.block(OneShotEvent.java:72) at hudson.model.Queue.pop(Queue.java:949) at hudson.model.Executor.grabJob(Executor.java:297) at hudson.model.Executor.run(Executor.java:211) Handling GET /threadDump : RequestHandlerThread[#285] "Handling GET /threadDump : RequestHandlerThread[#285]" Id=1779 Group=main TIMED_WAITING on java.util.concurrent.FutureTask$Sync@1df95c4 at sun.misc.Unsafe.park(Native Method) - waiting on java.util.concurrent.FutureTask$Sync@1df95c4 at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at hudson.remoting.LocalChannel$2.get(LocalChannel.java:81) at jenkins.model.Jenkins.getAllThreadDumps(Jenkins.java:2882) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.commons.jexl.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:258) at org.apache.commons.jexl.parser.ASTMethod.execute(ASTMethod.java:104) at org.apache.commons.jexl.parser.ASTReference.execute(ASTReference.java:83) at org.apache.commons.jexl.parser.ASTReference.value(ASTReference.java:57) at org.apache.commons.jexl.parser.ASTReferenceExpression.value(ASTReferenceExpression.java:51) at org.apache.commons.jexl.ExpressionImpl.evaluate(ExpressionImpl.java:80) at hudson.ExpressionFactory2$JexlExpression.evaluate(ExpressionFactory2.java:74) at org.apache.commons.jelly.expression.ExpressionSupport.evaluateRecurse(ExpressionSupport.java:61) at org.apache.commons.jelly.expression.ExpressionSupport.evaluateAsIterator(ExpressionSupport.java:94) at org.apache.commons.jelly.tags.core.ForEachTag.doTag(ForEachTag.java:89) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98) at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$1.run(CoreTagLibrary.java:98) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98) at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.JellyViewScript.run(JellyViewScript.java:81) at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:63) at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:53) at org.kohsuke.stapler.jelly.JellyFacet$1.dispatch(JellyFacet.java:95) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:685) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:799) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:587) at org.kohsuke.stapler.Stapler.service(Stapler.java:218) at javax.servlet.http.HttpServlet.service(HttpServlet.java:45) at winstone.ServletConfiguration.execute(ServletConfiguration.java:248) at winstone.RequestDispatcher.forward(RequestDispatcher.java:333) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:376) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at winstone.FilterConfiguration.execute(FilterConfiguration.java:194) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366) at winstone.RequestDispatcher.forward(RequestDispatcher.java:331) at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:227) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@1f96332 Jenkins cron thread "Jenkins cron thread" Id=16 Group=main TIMED_WAITING on java.util.TaskQueue@1f8eb37 at java.lang.Object.wait(Native Method) - waiting on java.util.TaskQueue@1f8eb37 at java.util.TimerThread.mainLoop(Unknown Source) at java.util.TimerThread.run(Unknown Source) Jenkins UDP 33848 monitoring thread "Jenkins UDP 33848 monitoring thread" Id=24 Group=main RUNNABLE (in native) at java.net.PlainDatagramSocketImpl.receive0(Native Method) - locked java.net.PlainDatagramSocketImpl@39a838 at java.net.PlainDatagramSocketImpl.receive(Unknown Source) - locked java.net.PlainDatagramSocketImpl@39a838 at java.net.DatagramSocket.receive(Unknown Source) - locked java.net.DatagramPacket@12d0b0e - locked java.net.MulticastSocket@30e382 at hudson.UDPBroadcastThread.run(UDPBroadcastThread.java:82) Jenkins-Remoting-Thread-308 "Jenkins-Remoting-Thread-308" Id=1796 Group=main RUNNABLE at sun.management.ThreadImpl.dumpThreads0(Native Method) at sun.management.ThreadImpl.dumpAllThreads(Unknown Source) at hudson.Functions.getThreadInfos(Functions.java:1135) at hudson.util.RemotingDiagnostics$GetThreadDump.call(RemotingDiagnostics.java:96) at hudson.util.RemotingDiagnostics$GetThreadDump.call(RemotingDiagnostics.java:92) at hudson.remoting.LocalChannel$1.call(LocalChannel.java:52) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@1fbcdd7 JmDNS(MADy1234.local.).State.Timer "JmDNS(MADy1234.local.).State.Timer" Id=31 Group=main TIMED_WAITING on java.util.TaskQueue@2d723d at java.lang.Object.wait(Native Method) - waiting on java.util.TaskQueue@2d723d at java.util.TimerThread.mainLoop(Unknown Source) at java.util.TimerThread.run(Unknown Source) JmDNS(MADy1234.local.).Timer "JmDNS(MADy1234.local.).Timer" Id=30 Group=main TIMED_WAITING on java.util.TaskQueue@1a706fc at java.lang.Object.wait(Native Method) - waiting on java.util.TaskQueue@1a706fc at java.util.TimerThread.mainLoop(Unknown Source) at java.util.TimerThread.run(Unknown Source) LauncherControlThread[ControlPort=-1] "LauncherControlThread[ControlPort=-1]" Id=13 Group=main TIMED_WAITING at java.lang.Thread.sleep(Native Method) at winstone.Launcher.run(Launcher.java:265) at java.lang.Thread.run(Unknown Source) NioSocketAcceptor-1 "NioSocketAcceptor-1" Id=22 Group=main RUNNABLE (in native) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source) at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source) at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source) - locked sun.nio.ch.Util$2@dd68d0 - locked java.util.Collections$UnmodifiableSet@53b007 - locked sun.nio.ch.WindowsSelectorImpl@12230ae at sun.nio.ch.SelectorImpl.select(Unknown Source) at sun.nio.ch.SelectorImpl.select(Unknown Source) at org.apache.mina.transport.socket.nio.NioSocketAcceptor.select(NioSocketAcceptor.java:238) at org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.run(AbstractPollingIoAcceptor.java:432) at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@1a9f431 pool-8-thread-1 "pool-8-thread-1" Id=28 Group=main WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@192c0 at sun.misc.Unsafe.park(Native Method) - waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@192c0 at java.util.concurrent.locks.LockSupport.park(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source) at java.util.concurrent.DelayQueue.take(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) RequestHandlerThread[#260] : reading request #0 from /127.0.0.1:1613 "RequestHandlerThread[#260] : reading request #0 from /127.0.0.1:1613" Id=1745 Group=main RUNNABLE (in native) at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at winstone.WinstoneInputStream.read(WinstoneInputStream.java:49) at javax.servlet.ServletInputStream.readLine(ServletInputStream.java:27) at winstone.WinstoneInputStream.readLine(WinstoneInputStream.java:108) at winstone.HttpListener.parseURI(HttpListener.java:241) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:83) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@1c4d3d3 RequestHandlerThread[#277] : reading request #344 from /10.6.9.48:4640 "RequestHandlerThread[#277] : reading request #344 from /10.6.9.48:4640" Id=1771 Group=main RUNNABLE (in native) at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at winstone.WinstoneInputStream.read(WinstoneInputStream.java:49) at javax.servlet.ServletInputStream.readLine(ServletInputStream.java:27) at winstone.WinstoneInputStream.readLine(WinstoneInputStream.java:108) at winstone.HttpListener.parseURI(HttpListener.java:241) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:83) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@1e178d8 RequestHandlerThread[#288] : reading request #0 from /127.0.0.1:1611 "RequestHandlerThread[#288] : reading request #0 from /127.0.0.1:1611" Id=1792 Group=main RUNNABLE (in native) at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at winstone.WinstoneInputStream.read(WinstoneInputStream.java:49) at javax.servlet.ServletInputStream.readLine(ServletInputStream.java:27) at winstone.WinstoneInputStream.readLine(WinstoneInputStream.java:108) at winstone.HttpListener.parseURI(HttpListener.java:241) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:83) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@16890c8 RequestHandlerThread[#289] : reading request #0 from /127.0.0.1:1612 "RequestHandlerThread[#289] : reading request #0 from /127.0.0.1:1612" Id=1793 Group=main RUNNABLE (in native) at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at winstone.WinstoneInputStream.read(WinstoneInputStream.java:49) at javax.servlet.ServletInputStream.readLine(ServletInputStream.java:27) at winstone.WinstoneInputStream.readLine(WinstoneInputStream.java:108) at winstone.HttpListener.parseURI(HttpListener.java:241) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:83) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@672bbd RequestHandlerThread[#290] : reading request #0 from /127.0.0.1:1614 "RequestHandlerThread[#290] : reading request #0 from /127.0.0.1:1614" Id=1794 Group=main RUNNABLE (in native) at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at winstone.WinstoneInputStream.read(WinstoneInputStream.java:49) at javax.servlet.ServletInputStream.readLine(ServletInputStream.java:27) at winstone.WinstoneInputStream.readLine(WinstoneInputStream.java:108) at winstone.HttpListener.parseURI(HttpListener.java:241) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:83) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@1b8dfb6 RequestHandlerThread[#291] : reading request #0 from /127.0.0.1:1615 "RequestHandlerThread[#291] : reading request #0 from /127.0.0.1:1615" Id=1795 Group=main RUNNABLE (in native) at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at winstone.WinstoneInputStream.read(WinstoneInputStream.java:49) at javax.servlet.ServletInputStream.readLine(ServletInputStream.java:27) at winstone.WinstoneInputStream.readLine(WinstoneInputStream.java:108) at winstone.HttpListener.parseURI(HttpListener.java:241) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:83) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Number of locked synchronizers = 1 - java.util.concurrent.locks.ReentrantLock$NonfairSync@870a5b SocketListener(MADy1234.local.) "SocketListener(MADy1234.local.)" Id=29 Group=main RUNNABLE (in native) at java.net.PlainDatagramSocketImpl.receive0(Native Method) - locked java.net.PlainDatagramSocketImpl@bbbb73 at java.net.PlainDatagramSocketImpl.receive(Unknown Source) - locked java.net.PlainDatagramSocketImpl@bbbb73 at java.net.DatagramSocket.receive(Unknown Source) - locked java.net.DatagramPacket@1b0c2d0 - locked java.net.MulticastSocket@1c5efc9 at javax.jmdns.impl.SocketListener.run(SocketListener.java:41) TCP slave agent listener port=0 "TCP slave agent listener port=0" Id=23 Group=main RUNNABLE (in native) at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(Unknown Source) - locked java.net.SocksSocketImpl@1a89909 at java.net.ServerSocket.implAccept(Unknown Source) at java.net.ServerSocket.accept(Unknown Source) at hudson.TcpSlaveAgentListener.run(TcpSlaveAgentListener.java:93) ViewJob reload thread "ViewJob reload thread" Id=21 Group=main TIMED_WAITING on java.util.LinkedHashSet@decf41 at java.lang.Object.wait(Native Method) - waiting on java.util.LinkedHashSet@decf41 at hudson.model.ViewJob$ReloadThread.getNext(ViewJob.java:171) at hudson.model.ViewJob$ReloadThread.run(ViewJob.java:188) WinstoneHostConfigurationMgmt:default "WinstoneHostConfigurationMgmt:default" Id=11 Group=main TIMED_WAITING at java.lang.Thread.sleep(Native Method) at winstone.HostConfiguration.run(HostConfiguration.java:174) at java.lang.Thread.run(Unknown Source) Attach Listener "Attach Listener" Id=5 Group=system RUNNABLE Finalizer "Finalizer" Id=3 Group=system WAITING on java.lang.ref.ReferenceQueue$Lock@3e2bcc at java.lang.Object.wait(Native Method) - waiting on java.lang.ref.ReferenceQueue$Lock@3e2bcc at java.lang.ref.ReferenceQueue.remove(Unknown Source) at java.lang.ref.ReferenceQueue.remove(Unknown Source) at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source) Java2D Disposer "Java2D Disposer" Id=9 Group=system WAITING on java.lang.ref.ReferenceQueue$Lock@54d067 at java.lang.Object.wait(Native Method) - waiting on java.lang.ref.ReferenceQueue$Lock@54d067 at java.lang.ref.ReferenceQueue.remove(Unknown Source) at java.lang.ref.ReferenceQueue.remove(Unknown Source) at sun.java2d.Disposer.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Reference Handler "Reference Handler" Id=2 Group=system WAITING on java.lang.ref.Reference$Lock@1ad969f at java.lang.Object.wait(Native Method) - waiting on java.lang.ref.Reference$Lock@1ad969f at java.lang.Object.wait(Object.java:485) at java.lang.ref.Reference$ReferenceHandler.run(Unknown Source) Signal Dispatcher "Signal Dispatcher" Id=4 Group=system RUNNABLE