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From "Eric Schellhammer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LOG4J2-167) ClassCastException from SimpleLoggerContext to core.LoggerContext, since it implements spi.LoggerContext
Date Mon, 04 Mar 2013 11:49:12 GMT

    [ https://issues.apache.org/jira/browse/LOG4J2-167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592143#comment-13592143
] 

Eric Schellhammer commented on LOG4J2-167:
------------------------------------------

The exception is no longer thrown, and so the immediate problem is solved.
However, the way it is constructed now, even a valid URI parameter configLocation is effectively
ignored if the default configuration fails (i.e. returns the SimpleLoggerContext). This leaves
no possibility for configuration in this case, significantly reducing the features of Log4j2.

Should this be stated as a new bug or continued in this issue?


Btw: If I see it correctly, the SimpleLogger can never be used as a normal Logger for Log4j2,
but only in the context of the StatusLogger. This may be the intended behaviour; if this is
so, however, the class comment in SimpleLogger.java should be altered accordingly.
                
> ClassCastException from SimpleLoggerContext to core.LoggerContext, since it implements
spi.LoggerContext
> --------------------------------------------------------------------------------------------------------
>
>                 Key: LOG4J2-167
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-167
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0-beta5
>            Reporter: Eric Schellhammer
>            Assignee: Ralph Goers
>             Fix For: 2.0-beta5
>
>
> When calling Configurator.initialize(<Name>, null, <File>) it calls LogManager.getContext(loader,
false) and if no logging implementation can be found this method returns a new SimpleLoggerContext
(created by the factory which in turn is created in the static part of the class). This class
implements spi.LoggerContext but the Configurator tries to cast it to core.LoggerContext,
which fails since SimpleLoggerContext does not extend that class.

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