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http://issues.apache.org/bugzilla/show_bug.cgi?id=40260

           Summary: null pointer exception in pattern layout (in spacePad
                    method)
           Product: Log4j
           Version: 1.2
          Platform: Other
        OS/Version: Windows XP
            Status: NEW
          Severity: major
          Priority: P2
         Component: Layout
        AssignedTo: log4j-dev@logging.apache.org
        ReportedBy: [EMAIL PROTECTED]


It is being used in a worker thread by xapool 1.5.0 as seen on the
Stacktrace:

Exception in thread "Thread-3" java.lang.NullPointerException
        at org.apache.log4j.helpers.PatternConverter.spacePad
(PatternConverter.java:106)
        at org.apache.log4j.helpers.PatternConverter.format
(PatternConverter.java:82)
        at org.apache.log4j.PatternLayout.format(PatternLayout.java:503)
        at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:301)
        at org.apache.log4j.WriterAppender.append(WriterAppender.java:159)
        at org.apache.log4j.AppenderSkeleton.doAppend
(AppenderSkeleton.java:230)
        at 
org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders
(AppenderAttachableImpl.java:65)
        at org.apache.log4j.Category.callAppenders(Category.java:203)
        at org.apache.log4j.Category.forcedLog(Category.java:388)
        at org.apache.log4j.Category.log(Category.java:853)
        at org.apache.commons.logging.impl.Log4JLogger.info
(Log4JLogger.java:133)
        at org.enhydra.jdbc.util.Logger.info(Logger.java:43)
        at org.enhydra.jdbc.pool.GenericPool.cleanUp(GenericPool.java:737)
        at org.enhydra.jdbc.pool.PoolKeeper.run(PoolKeeper.java:60)
        at java.lang.Thread.run(Thread.java:595)

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