[SUREFIRE-1524] PpidChecker sometimes writes dump file with IOException

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.21.0
• Component/s: process forking
• Assignee: Unassigned
• Reporter: Dan Berindei
• Created: 29/May/18 05:16
• Updated: 29/May/18 05:16

Description

We have a build with lots of modules, and once in a while we see a dump file like this after the build:

./commons/target/surefire-reports/2018-05-26T05-53-09_562-jvmRun1.dump
# Created on 2018-05-26T05:53:16.823
java.io.IOException: Stream closed
	at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:176)
	at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:289)
	at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:351)
	at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)
	at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
	at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
	at java.base/java.io.InputStreamReader.read(InputStreamReader.java:185)
	at java.base/java.io.Reader.read(Reader.java:104)
	at java.base/java.util.Scanner.readInput(Scanner.java:882)
	at java.base/java.util.Scanner.findWithinHorizon(Scanner.java:1796)
	at java.base/java.util.Scanner.hasNextLine(Scanner.java:1610)
	at org.apache.maven.surefire.booter.PpidChecker$ProcessInfoConsumer.execute(PpidChecker.java:301)
	at org.apache.maven.surefire.booter.PpidChecker.unix(PpidChecker.java:160)
	at org.apache.maven.surefire.booter.PpidChecker.isProcessAlive(PpidChecker.java:115)
	at org.apache.maven.surefire.booter.ForkedBooter$2.run(ForkedBooter.java:213)
<...>


# Created on 2018-05-26T05:53:16.827
System.exit() or native command error interrupted process checker.

Looks like it's safe to ignore both messages, but it would be better if they weren't logged at all.