[LOG4J2-1108] NullPointerException when passing null to java.util.logging.Logger.setLevel()

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.4
• Fix Version/s: 2.4
• Component/s: JUL adapter

Environment

-Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager

• Assignee: Gary D. Gregory
• Reporter: Mikael Ståldal
• Created: 27/Aug/15 12:24
• Updated: 02/Sep/15 08:22
• Resolved: 01/Sep/15 19:05

Description

When using a 3rd party library (Twitter Finagle) which uses a custom java.util.logging.Level, I get this:

Exception in thread "main" java.lang.NullPointerException
        at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:333)
        at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:988)
        at org.apache.logging.log4j.jul.DefaultLevelConverter.toLevel(DefaultLevelConverter.java:119)
        at org.apache.logging.log4j.jul.LevelTranslator.toLevel(LevelTranslator.java:72)
        at org.apache.logging.log4j.jul.CoreLogger.setLevel(CoreLogger.java:47)
        at com.twitter.logging.Logger.setLevel(Logger.scala:63)