Preinstrumentor agent log gives "IOException caught while reading or writing data" (4263013)

At the end of the Preinstrumentor log the following error is seen:

YYYY-MM-DD HH:MM:SS.MMM INFO [Execute Queue: Event Handler Thread] com.sitraka.pas.agent.recording.AgentRecordingManager - Session recording started
YYYY-MM-DD HH:MM:SS.MMM VERBOSE [Execute Queue: Event Handler Thread] com.sitraka.pas.agent.nexus.NexusProxy - Handling of event "start-recording" is now complete.
YYYY-MM-DD HH:MM:SS.MMM INFO [PerformaSure Agent Main Thread] com.sitraka.pas.agent.instrumentor.PreInstrumentor - Creating bootstrap classes in /path/to/JavaEE/X.X.X-XXX-XXXXXXXX-XXXX/bootstrap/XXXXXXX.jar
YYYY-MM-DD HH:MM:SS.MMM VERBOSE [PerformaSure Agent Main Thread] com.sitraka.pas.agent.nexus.NexusDelegate - Sending event notification "application.started"
YYYY-MM-DD HH:MM:SS.MMM INFO [PerformaSure Agent Main Thread] com.sitraka.pas.agent.app.PreInstrumentorAgent - Preinstrumentation complete
YYYY-MM-DD HH:MM:SS.MMM INFO [PerformaSure Agent Main Thread] com.sitraka.pas.agent.recording.AgentRecordingManager - Session recording stopped
YYYY-MM-DD HH:MM:SS.MMM VERBOSE [PerformaSure Agent Main Thread] com.sitraka.pas.agent.nexus.NexusDelegate - Sending event notification "agent.shutdown"
YYYY-MM-DD HH:MM:SS.MMM VERBOSE [Multiplexer: 0] com.quest.pas.common.comm.Multiplexer - IOException caught while reading or writing data; connection: java.nio.channels.SocketChannel[closed]
java.nio.channels.ClosedChannelException
at sun.nio.ch.SocketChannelImpl.ensureReadOpen(SocketChannelImpl.java:113)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:156)
at com.quest.pas.common.comm.AbstractConnection.read(AbstractConnection.java:113)
at com.quest.pas.common.comm.MessageConnection.read(MessageConnection.java:217)
at com.quest.pas.common.comm.Multiplexer.read(Multiplexer.java:284)
at com.quest.pas.common.comm.Multiplexer.run(Multiplexer.java:105)
at java.lang.Thread.run(Thread