[SUREFIRE-2002] TCP client throws WritePendingException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-M5
• Fix Version/s: 3.0.0-M6
• Component/s: Maven Failsafe Plugin, Maven Surefire Plugin
• Assignee: Tibor Digana
• Reporter: Tibor Digana
• Created: 04/Feb/22 01:07
• Updated: 04/Feb/22 04:23
• Resolved: 04/Feb/22 04:23

Description

The main Thread confirms a session by sending raw bytes from the forked JVM back to the TCP server in the plugin. Sometimes this async operation overlaps with another operation writing events to the NIO Channel. The exception WritePendingException is caught by the dump file:

# Created at 2022-02-03T05:48:25.661
java.io.IOException
	at org.apache.maven.surefire.api.util.internal.Channels$1.write(Channels.java:111)
	at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
	at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
	at org.apache.maven.surefire.api.util.internal.Channels$4.flushImpl(Channels.java:266)
	at org.apache.maven.surefire.api.util.internal.AbstractNoninterruptibleWritableChannel.write(AbstractNoninterruptibleWritableChannel.java:76)
	at org.apache.maven.surefire.api.util.internal.AbstractNoninterruptibleWritableChannel.write(AbstractNoninterruptibleWritableChannel.java:45)
	at org.apache.maven.surefire.api.stream.AbstractStreamEncoder.write(AbstractStreamEncoder.java:78)
	at org.apache.maven.surefire.booter.spi.EventChannelEncoder.write(EventChannelEncoder.java:334)
	at org.apache.maven.surefire.booter.spi.EventChannelEncoder.consoleDebugLog(EventChannelEncoder.java:262)
	at org.apache.maven.surefire.api.booter.ForkingRunListener.debug(ForkingRunListener.java:150)
	at org.apache.maven.surefire.booter.ForkedBooter.listenToShutdownCommands(ForkedBooter.java:264)
	at org.apache.maven.surefire.booter.ForkedBooter.setupBooter(ForkedBooter.java:146)
	at org.apache.maven.surefire.booter.ForkedBooter.run(ForkedBooter.java:599)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:586)
Caused by: java.nio.channels.WritePendingException
	at sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:353)
	at sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:388)
	at org.apache.maven.surefire.api.util.internal.Channels$1.write(Channels.java:100)
	... 13 more


# Created at 2022-02-03T05:48:32.716
The channel (std/out or TCP/IP) failed to send a stream from this subprocess.