[SUREFIRE-906] Sometimes get NullPointerException in forked process

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.12.3
• Fix Version/s: 2.12.3
• Component/s: process forking
• Environment: Arch linux
• Assignee: Kristian Rosenvold
• Reporter: Christopher Mosher
• Created: 17/Aug/12 09:09
• Updated: 17/Aug/12 19:36
• Resolved: 17/Aug/12 17:11

Description

(This is using the latest 2.13-SNAPSHOT)

Using forkMode=perthread, the child processes sometimes abort with this exception:

java.lang.NullPointerException
at java.io.File.<init>(File.java:251)
at org.apache.maven.surefire.booter.BooterDeserializer.deserialize(BooterDeserializer.java:61)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:63)

It only happens sometimes.
Using -X keeps the temp files, and looking at the file that's supposed to pass the properties, I see that the file is truncated midway, causing the exception.

Possibly the parent process needs to flush the file after it writes to it before is closes it.