[LOG4J2-2561] In log4j-core AbstractStringLayout java version detection is not JEP223 compatible

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.11.2
• Fix Version/s: 2.12.0
• Component/s: Core
• Labels: easyfix pull-request-available
• Flags: Patch, Important
• Assignee: Unassigned
• Reporter: Ulrich Enslin
• Created: 02/Mar/19 06:28
• Updated: 13/May/19 05:38
• Resolved: 13/May/19 05:38

Description

The function isPreJava8() will detect java 9 and higher as being pre java 8, because the logic does not take JEP223 into account.

 

The same logic is correct in org.apache.logging.log4j.util.Constants#getMajorVersion, so simply modified the logic in AbstractStringLayout to work the same in the PR.

 

This seems like a small change, but it prevents log4j from being JDK 9 and up compatible.

Issue Links

• links to: GitHub Pull Request #260
• links to: GitHub Pull Request #262