Intermitent stack trace

Hello,
I'm using the last version and i get some times the following stack trace :
2015-02-03 07:46:11,958 ERROR worker-bootstrap: Error running worker process
net.grinder.communication.CommunicationException: Exception whilst sending
message
        at
net.grinder.communication.AbstractSender.send(AbstractSender.java:57)
~[grinder-core-3.11.jar:na]
        at
net.grinder.communication.QueuedSenderDecorator.flush(QueuedSenderDecorator.java:60)
~[grinder-core-3.11.jar:na]
        at
net.grinder.engine.process.GrinderProcess.sendStatusMessage(GrinderProcess.java:638)
~[grinder-core-3.11.jar:na]
        at
net.grinder.engine.process.GrinderProcess.run(GrinderProcess.java:430)
~[grinder-core-3.11.jar:na]
        at
net.grinder.engine.process.WorkerProcessEntryPoint.run(WorkerProcessEntryPoint.java:86)
[grinder-core-3.11.jar:na]
        at
net.grinder.engine.process.WorkerProcessEntryPoint.main(WorkerProcessEntryPoint.java:59)
[grinder-core-3.11.jar:na]
Caused by: java.net.SocketException: Software caused connection abort:
socket write error
        at java.net.SocketOutputStream.socketWrite0(Native Method)
~[na:1.7.0_75]
        at
java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:113)
~[na:1.7.0_75]
        at java.net.SocketOutputStream.write(SocketOutputStream.java:159)
~[na:1.7.0_75]
        at
java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
~[na:1.7.0_75]
        at
java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
~[na:1.7.0_75]
        at
java.io.ObjectOutputStream$BlockDataOutputStream.flush(ObjectOutputStream.java:1822)
~[na:1.7.0_75]
        at java.io.ObjectOutputStream.flush(ObjectOutputStream.java:718)
~[na:1.7.0_75]
        at
net.grinder.communication.AbstractSender.writeMessageToStream(AbstractSender.java:90)
~[grinder-core-3.11.jar:na]
        at
net.grinder.communication.StreamSender.writeMessage(StreamSender.java:70)
~[grinder-core-3.11.jar:na]
        at
net.grinder.communication.AbstractSender.send(AbstractSender.java:53)
~[grinder-core-3.11.jar:na]
        ... 5 common frames omitted

I'm wondering what is the root cause of this stack trace and if there is a
way to avoid it, even by digging in the grinder code of course.
Thanks a lot for your support,
Long life to grinder.
Olivier

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