ArrayIndexOutOfBoundsException with RollingFileApender

[Mariano Gonzalez]

Hello,

I'm progamatically creating an appender with the following code:

private static final String PATTERN_LAYOUT = "%-5p %d [%t] %c: %m%n";

private RollingFileAppender createRollingFileAppender(String logFilePath,
String filePattern, String appenderName, Configuration configuration)
{
    TriggeringPolicy triggeringPolicy =
TimeBasedTriggeringPolicy.createPolicy("1", "true");
    RolloverStrategy rolloverStrategy =
DefaultRolloverStrategy.createStrategy("30", "1", null,
String.valueOf(Deflater.NO_COMPRESSION), configuration);

    return RollingFileAppender.createAppender(logFilePath,
      logFilePath + filePattern,
      "true",
      appenderName,
      "true",
      null, null,
      triggeringPolicy,
      rolloverStrategy,
      createLayout(configuration),
      null, null, null, null,
      configuration);
}

private Layout<? extends Serializable> createLayout(Configuration
configuration)
{
    return PatternLayout.createLayout(PATTERN_LAYOUT, configuration, null,
null, true, false, null, null);
}

Sometimes, not always, when an exception is thrown I end up seeing the
following error:

2014-12-02 14:36:52,092 ERROR An exception occurred processing Appender
defaultFileAppender java.lang.ArrayIndexOutOfBoundsException: 53

at
org.apache.logging.log4j.core.impl.ThrowableProxy.formatElements(ThrowableProxy.java:227)

at
org.apache.logging.log4j.core.impl.ThrowableProxy.getExtendedStackTraceAsString(ThrowableProxy.java:401)

at
org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverter.format(ExtendedThrowablePatternConverter.java:72)

at
org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:36)

at
org.apache.logging.log4j.core.layout.PatternLayout.toSerializable(PatternLayout.java:189)

at
org.apache.logging.log4j.core.layout.PatternLayout.toSerializable(PatternLayout.java:53)

at
org.apache.logging.log4j.core.layout.AbstractStringLayout.toByteArray(AbstractStringLayout.java:52)

at
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:104)

at
org.apache.logging.log4j.core.appender.RollingFileAppender.append(RollingFileAppender.java:86)

at
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:97)

at
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:428)

at
org.apache.logging.log4j.core.async.AsyncLoggerConfig.asyncCallAppenders(AsyncLoggerConfig.java:118)

at
org.apache.logging.log4j.core.async.AsyncLoggerConfigHelper$Log4jEventWrapperHandler.onEvent(AsyncLoggerConfigHelper.java:222)

at
org.apache.logging.log4j.core.async.AsyncLoggerConfigHelper$Log4jEventWrapperHandler.onEvent(AsyncLoggerConfigHelper.java:207)

at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:128)

at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:745)


I noticed that it doesn't happen for every exception, but when it does
happen, it happens consistently. I also noticed that it's the causedTrace
array the one that usually falls short. Is this a known issue? Any way I
can get a fix? Maybe with a different layout? I'm using log4j 2.0.2


Thanks you!