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

[Gary Gregory (JIRA)]

    [ 
https://issues.apache.org/jira/browse/LOG4J2-1108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14720433#comment-14720433
 ] 

Gary Gregory commented on LOG4J2-1108:
--------------------------------------

OK, so this works:

{code:java}
    public synchronized void setLevel(final Level level) {
        if (level != null) {
            config = new PrivateConfig(config, level);
        } else {
            config = new PrivateConfig(config, getParent().getLevel());
        }
    }
{code}

Better?

> NullPointerException when passing null to java.util.logging.Logger.setLevel()
> -----------------------------------------------------------------------------
>
>                 Key: LOG4J2-1108
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1108
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: JUL adapter
>    Affects Versions: 2.4
>         Environment: 
> -Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager
>            Reporter: Mikael Ståldal
>            Assignee: Gary Gregory
>            Priority: Blocker
>             Fix For: 2.4
>
>         Attachments: setlevel.patch
>
>
> When using a 3rd party library (Twitter Finagle) which uses a custom 
> java.util.logging.Level, I get this:
> {code}
> 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)
> {code}



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