"Channel reader thread: HTTP full-duplex channel ...":
  waiting to lock monitor 0x00007f12c4d469b8 (object 0x00000000dd36af48, a java.io.PrintStream),
  which is held by "pool-3-thread-2602"
"pool-3-thread-2602":
  waiting to lock monitor 0x00007f12acb570f8 (object 0x00000000dd3657b0, a hudson.remoting.Channel),
  which is held by "Channel reader thread: HTTP full-duplex channel ..."
"Channel reader thread: HTTP full-duplex channel ...":
	at java.io.PrintStream.write(PrintStream.java:429)
	- waiting to lock <0x00000000dd36af48> (a java.io.PrintStream)
	at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
	at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
	at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:276)
	at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:122)
	- locked <0x00000000dd5e84e0> (a java.io.OutputStreamWriter)
	at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:212)
	at java.io.PrintWriter.newLine(PrintWriter.java:438)
	- locked <0x00000000dd5e84e0> (a java.io.OutputStreamWriter)
	at java.io.PrintWriter.println(PrintWriter.java:585)
	at java.io.PrintWriter.println(PrintWriter.java:696)
	- locked <0x00000000dd5e84e0> (a java.io.OutputStreamWriter)
	at java.lang.Throwable.printStackTraceAsCause(Throwable.java:538)
	at java.lang.Throwable.printStackTrace(Throwable.java:516)
	- locked <0x00000000dd5e8538> (a java.io.PrintWriter)
	at hudson.slaves.SlaveComputer$2.onClosed(SlaveComputer.java:339)
	at hudson.remoting.Channel.terminate(Channel.java:747)
	- locked <0x00000000dd3657b0> (a hudson.remoting.Channel)
	at hudson.remoting.Channel$ReaderThread.run(Channel.java:1139)
"pool-3-thread-2602":
	at hudson.remoting.Channel.send(Channel.java:498)
	- waiting to lock <0x00000000dd3657b0> (a hudson.remoting.Channel)
	at hudson.remoting.ProxyOutputStream._write(ProxyOutputStream.java:123)
	- locked <0x00000000dd36af78> (a hudson.remoting.ProxyOutputStream)
	at hudson.remoting.ProxyOutputStream.write(ProxyOutputStream.java:103)
	at hudson.remoting.RemoteOutputStream.write(RemoteOutputStream.java:110)
	at java.io.PrintStream.write(PrintStream.java:430)
	- locked <0x00000000dd36af48> (a java.io.PrintStream)
	at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
	at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
	at sun.nio.cs.StreamEncoder.flushBuffer(StreamEncoder.java:85)
	- locked <0x00000000dd36afc8> (a java.io.OutputStreamWriter)
	at java.io.OutputStreamWriter.flushBuffer(OutputStreamWriter.java:168)
	at java.io.PrintStream.write(PrintStream.java:477)
	- locked <0x00000000dd36af48> (a java.io.PrintStream)
	at java.io.PrintStream.print(PrintStream.java:619)
	at java.io.PrintStream.println(PrintStream.java:773)
	- locked <0x00000000dd36af48> (a java.io.PrintStream)
	at java.lang.Throwable.printStackTrace(Throwable.java:461)
	- locked <0x00000000dd36af48> (a java.io.PrintStream)
	at hudson.cli.CLICommand.main(CLICommand.java:215)
	at hudson.cli.CliManagerImpl.main(CliManagerImpl.java:66)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:274)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:255)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:215)
	at hudson.remoting.UserRequest.perform(UserRequest.java:118)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:287)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)