log4j stackoverflow [closed]

Question

This is a real stackoverflow exception on the stackoverflow site! I just wondered if anyone had seen it before - and what they used to address it.

java.lang.StackOverflowError
at java.lang.Exception.<init>(Exception.java:41)
at java.io.IOException.<init>(IOException.java:41)
at java.io.FileOutputStream.writeBytes(Native Method)
at java.io.FileOutputStream.write(FileOutputStream.java:260)
at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
at sun.nio.cs.StreamEncoder.implWrite(StreamEncoder.java:263)
at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:106)
at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:116)
at java.io.OutputStreamWriter.write(OutputStreamWriter.java:203)
at java.io.Writer.write(Writer.java:140)
at org.apache.log4j.helpers.CountingQuietWriter.write(CountingQuietWriter.java:44)
at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:301)
at org.apache.log4j.contribs.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:395)
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:835)
at org.apache.log4j.contribs.LoggingOutputStream.flush(LoggingOutputStream.java:168)
at java.io.PrintStream.write(PrintStream.java:432)
at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
at sun.nio.cs.StreamEncoder.flushBuffer(StreamEncoder.java:85)
at java.io.OutputStreamWriter.flushBuffer(OutputStreamWriter.java:168)
at java.io.PrintStream.write(PrintStream.java:477)
at java.io.PrintStream.print(PrintStream.java:619)
at java.io.PrintStream.println(PrintStream.java:756)
at org.apache.log4j.helpers.LogLog.error(LogLog.java:142)
at org.apache.log4j.helpers.OnlyOnceErrorHandler.error(OnlyOnceErrorHandler.java:77)
at org.apache.log4j.helpers.OnlyOnceErrorHandler.error(OnlyOnceErrorHandler.java:67)
at org.apache.log4j.helpers.CountingQuietWriter.write(CountingQuietWriter.java:48)
at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:301)
at org.apache.log4j.contribs.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:395)
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:835)
at org.apache.log4j.contribs.LoggingOutputStream.flush(LoggingOutputStream.java:168)
at java.io.PrintStream.write(PrintStream.java:432)
at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
at sun.nio.cs.StreamEncoder.flushBuffer(StreamEncoder.java:85)
at java.io.OutputStreamWriter.flushBuffer(OutputStreamWriter.java:168)
at java.io.PrintStream.write(PrintStream.java:477)
at java.io.PrintStream.print(PrintStream.java:619)
at java.io.PrintStream.println(PrintStream.java:756)
at org.apache.log4j.helpers.LogLog.error(LogLog.java:142)
at org.apache.log4j.helpers.OnlyOnceErrorHandler.error(OnlyOnceErrorHandler.java:77)
at org.apache.log4j.helpers.OnlyOnceErrorHandler.error(OnlyOnceErrorHandler.java:67)
at org.apache.log4j.helpers.CountingQuietWriter.write(CountingQuietWriter.java:48)
at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:301)
at org.apache.log4j.contribs.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:395)
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:835)
at org.apache.log4j.contribs.LoggingOutputStream.flush(LoggingOutputStream.java:168)
at java.io.PrintStream.write(PrintStream.java:432)
at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
at sun.nio.cs.StreamEncoder.flushBuffer(StreamEncoder.java:85)
at java.io.OutputStreamWriter.flushBuffer(OutputStreamWriter.java:168)
at java.io.PrintStream.write(PrintStream.java:477)

... (repeated about 10 times)

    at java.io.PrintStream.write(PrintStream.java:432)
at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
at sun.nio.cs.StreamEncoder.flushBuffer(StreamEncoder.java:85)
at java.io.OutputStreamWriter.flushBuffer(OutputStreamWriter.java:168)
at java.io.PrintStream.write(PrintStream.java:477)
at java.io.PrintStream.print(PrintStream.java:619)
at java.io.PrintStream.println(PrintStream.java:756)
at org.apache.log4j.helpers.LogLog.error(LogLog.java:142)
at org.apache.log4j.helpers.OnlyOnceErrorHandler.error(OnlyOnceErrorHandler.java:77)
at org.apache.log4j.helpers.OnlyOnceErrorHandler.error(OnlyOnceErrorHandler.java:67)
at org.apache.log4j.helpers.CountingQuietWriter.write(CountingQuietWriter.java:48)
at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:301)
at org.apache.log4j.contribs.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:395)
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)

java.lang.StackOverflowError

Answer 1

Missing your log4j configuration files and code here.

But the initial guess is that

1) LoggingOutputStream is used somewhere in code, replacing System.err like this:

System.setErr(new PrintStream(new LoggingOutputStream(Category.getRoot(), Priority.WARN), true));

2) log4j is not configured properly and tries to print internal error to System.err in LogLog.

This creates circular logging calls which lead to stack overflow.

Try removing System.err interceptor from 1). This would allow the internal error from 2) to be surfaced.