[LOG4J2-1058] Log4jMarker#contains(String) does not respect org.slf4j.Marker contract

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3
• Fix Version/s: 2.4
• Component/s: SLF4J Bridge
• Assignee: Unassigned
• Reporter: Daniel Branzea
• Created: 21/Jun/15 21:52
• Updated: 23/Jun/15 08:05
• Resolved: 22/Jun/15 16:28

Description

Expected behavior
==============
'org.apache.logging.slf4j.Log4jMarker' implements 'org.slf4j.Marker'.

'org.slf4j.Marker#contains(String name)' contract states that: "If 'name' is null the returned value is always false."
http://www.slf4j.org/apidocs/org/slf4j/Marker.html#contains%28java.lang.String%29

Actual behavior
=============
'org.apache.logging.slf4j.Log4jMarker#contains(final String name)' throws 'IllegalArgumentException' if 'name' is null