java.util.ConcurrentModificationException: This exception has no message.

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via logging-log4j-user by Nathan Clement, 1 year ago
This exception has no message.
via logging-log4j-user by Nathan Clement, 1 year ago
This exception has no message.
via Stack Overflow by kuks
, 2 years ago
via GitHub by ccvcd
, 1 year ago
This exception has no message.
java.util.ConcurrentModificationException:
at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1031)
at java.util.TreeMap$EntryIterator.next(TreeMap.java:1052)
at java.util.TreeMap$EntryIterator.next(TreeMap.java:1050)
at java.util.AbstractMap.toString(AbstractMap.java:587)
at org.apache.log4j.helpers.PatternParser$MDCPatternConverter.convert(PatternParser.java:467)
at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
at com.metiom.system.DailyFileAppender.subAppend(DailyFileAppender.java:321)
at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
at org.apache.log4j.Category.callAppenders(Category.java:206)
at org.apache.log4j.Category.forcedLog(Category.java:391)
at org.apache.log4j.Category.debug(Category.java:260)

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