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

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