[LOG4J2-1445] OnStartupTriggeringPolicyTest fails on Windows saying the file is used by another process

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 2.6.2
• Fix Version/s: 2.6.2
• Component/s: Core

Environment

Windows 10, JDK 8

• Assignee: Unassigned
• Reporter: Ludovic HOCHET
• Created: 23/Jun/16 22:57
• Updated: 24/Jun/16 00:16
• Resolved: 23/Jun/16 23:35

Description

I saw some mention on the mailing list that some tests were failing on Windows and thought I'd give a look.
Effectively OnStartupTriggeringPolicyTest is failing on Windows with:
java.nio.file.FileSystemException:
target\testfile: Le processus ne peut pas accéder au fichier car ce fichier est utilisé par un autre processus.
at org.apache.logging.log4j.core.appender.rolling.OnStartupTriggeringPolicyTest.cleanup(OnStartupTriggeringPolicyTest.java:77)

This can be solved by ending the test with:
manager.release();

And is due to RollingFileManagerFactory.createManager(..) using new FileOutputStream(..) which eventually calls Windows API CreateFileW(..) without the FILE_SHARE_DELETE flag which prevent other calls to delete the file.

(Files.newOutputStream(..) eventually does the opposite)