java.lang.NullPointerException

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    • java.lang.NullPointerException at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:292) at org.apache.log4j.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:343) at org.apache.log4j.WriterAppender.append(WriterAppender.java:150) at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:221) at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:57) at org.apache.log4j.Category.callAppenders(Category.java:190) at org.apache.log4j.Category.forcedLog(Category.java:375) at org.apache.log4j.Category.info(Category.java:696)

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