[jira] [Commented] (LOG4J2-1769) JsonLayout Throwing Exceptions And Producing Broken Logs

2017-01-17 Thread ASF subversion and git services (JIRA)

[ 
https://issues.apache.org/jira/browse/LOG4J2-1769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15826780#comment-15826780
 ] 

ASF subversion and git services commented on LOG4J2-1769:
-

Commit b34236d8beb2175ff36074a8cf7a40ca73fae59d in logging-log4j2's branch 
refs/heads/LOG4J2-1748and1780-remove-ExecutorService-from-LoggerContext from 
[~mikaelstaldal]
[ https://git-wip-us.apache.org/repos/asf?p=logging-log4j2.git;h=b34236d ]

LOG4J2-1769 Make sure that GelfLayout is not affected by the same issue


> JsonLayout Throwing Exceptions And Producing Broken Logs
> 
>
> Key: LOG4J2-1769
> URL: https://issues.apache.org/jira/browse/LOG4J2-1769
> Project: Log4j 2
>  Issue Type: Bug
>  Components: Layouts
>Affects Versions: 2.7
> Environment: All Platforms
>Reporter: Brandon Goodin
>Assignee: Remko Popma
> Fix For: 2.8
>
> Attachments: JSONLayoutIssuesTest.java, log4j2.xml, 
> RequestStatistic.java
>
>
> In a multithreaded environment JsonLayout is throwing exceptions and 
> producing fragmented logs. We were able to produce a test that demonstrates 
> this. The following exceptions and broken logging are being seen.
> {code:title=IllegalArgumentException}
> 2017-01-06 16:57:59,173 Thread-98 ERROR An exception occurred processing 
> Appender stdout java.lang.IllegalArgumentException
>   at java.nio.Buffer.position(Buffer.java:244)
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:191)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:447)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:432)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:416)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:402)
>   at 
> org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
>   at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2091)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1988)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1960)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1297)
>   at 
> org.apache.logging.log4j.JSONLayoutIssuesTest$LoggingThread.run(JSONLayoutIssuesTest.java:54)
> {code}
> {code:title=BufferOverflowException}
> 2017-01-06 16:57:59,194 Thread-99 ERROR An exception occurred processing 
> Appender stdout java.nio.BufferOverflowException
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> 

[jira] [Commented] (LOG4J2-1769) JsonLayout Throwing Exceptions And Producing Broken Logs

2017-01-16 Thread JIRA

[ 
https://issues.apache.org/jira/browse/LOG4J2-1769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15824283#comment-15824283
 ] 

Mikael Ståldal commented on LOG4J2-1769:


GelfLayout works since it uses TextEncoderHelper. Added a unit test to make 
sure.

> JsonLayout Throwing Exceptions And Producing Broken Logs
> 
>
> Key: LOG4J2-1769
> URL: https://issues.apache.org/jira/browse/LOG4J2-1769
> Project: Log4j 2
>  Issue Type: Bug
>  Components: Layouts
>Affects Versions: 2.7
> Environment: All Platforms
>Reporter: Brandon Goodin
>Assignee: Remko Popma
> Fix For: 2.8
>
> Attachments: JSONLayoutIssuesTest.java, log4j2.xml, 
> RequestStatistic.java
>
>
> In a multithreaded environment JsonLayout is throwing exceptions and 
> producing fragmented logs. We were able to produce a test that demonstrates 
> this. The following exceptions and broken logging are being seen.
> {code:title=IllegalArgumentException}
> 2017-01-06 16:57:59,173 Thread-98 ERROR An exception occurred processing 
> Appender stdout java.lang.IllegalArgumentException
>   at java.nio.Buffer.position(Buffer.java:244)
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:191)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:447)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:432)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:416)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:402)
>   at 
> org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
>   at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2091)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1988)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1960)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1297)
>   at 
> org.apache.logging.log4j.JSONLayoutIssuesTest$LoggingThread.run(JSONLayoutIssuesTest.java:54)
> {code}
> {code:title=BufferOverflowException}
> 2017-01-06 16:57:59,194 Thread-99 ERROR An exception occurred processing 
> Appender stdout java.nio.BufferOverflowException
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
>   at 
> 

[jira] [Commented] (LOG4J2-1769) JsonLayout Throwing Exceptions And Producing Broken Logs

2017-01-16 Thread ASF subversion and git services (JIRA)

[ 
https://issues.apache.org/jira/browse/LOG4J2-1769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15824281#comment-15824281
 ] 

ASF subversion and git services commented on LOG4J2-1769:
-

Commit b34236d8beb2175ff36074a8cf7a40ca73fae59d in logging-log4j2's branch 
refs/heads/master from [~mikaelstaldal]
[ https://git-wip-us.apache.org/repos/asf?p=logging-log4j2.git;h=b34236d ]

LOG4J2-1769 Make sure that GelfLayout is not affected by the same issue


> JsonLayout Throwing Exceptions And Producing Broken Logs
> 
>
> Key: LOG4J2-1769
> URL: https://issues.apache.org/jira/browse/LOG4J2-1769
> Project: Log4j 2
>  Issue Type: Bug
>  Components: Layouts
>Affects Versions: 2.7
> Environment: All Platforms
>Reporter: Brandon Goodin
>Assignee: Remko Popma
> Fix For: 2.8
>
> Attachments: JSONLayoutIssuesTest.java, log4j2.xml, 
> RequestStatistic.java
>
>
> In a multithreaded environment JsonLayout is throwing exceptions and 
> producing fragmented logs. We were able to produce a test that demonstrates 
> this. The following exceptions and broken logging are being seen.
> {code:title=IllegalArgumentException}
> 2017-01-06 16:57:59,173 Thread-98 ERROR An exception occurred processing 
> Appender stdout java.lang.IllegalArgumentException
>   at java.nio.Buffer.position(Buffer.java:244)
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:191)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:447)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:432)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:416)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:402)
>   at 
> org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
>   at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2091)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1988)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1960)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1297)
>   at 
> org.apache.logging.log4j.JSONLayoutIssuesTest$LoggingThread.run(JSONLayoutIssuesTest.java:54)
> {code}
> {code:title=BufferOverflowException}
> 2017-01-06 16:57:59,194 Thread-99 ERROR An exception occurred processing 
> Appender stdout java.nio.BufferOverflowException
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   

[jira] [Commented] (LOG4J2-1769) JsonLayout Throwing Exceptions And Producing Broken Logs

2017-01-16 Thread JIRA

[ 
https://issues.apache.org/jira/browse/LOG4J2-1769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15824223#comment-15824223
 ] 

Mikael Ståldal commented on LOG4J2-1769:


Do we need similar fixes for PatternLayout and GelfLayout?

> JsonLayout Throwing Exceptions And Producing Broken Logs
> 
>
> Key: LOG4J2-1769
> URL: https://issues.apache.org/jira/browse/LOG4J2-1769
> Project: Log4j 2
>  Issue Type: Bug
>  Components: Layouts
>Affects Versions: 2.7
> Environment: All Platforms
>Reporter: Brandon Goodin
>Assignee: Remko Popma
> Fix For: 2.8
>
> Attachments: JSONLayoutIssuesTest.java, log4j2.xml, 
> RequestStatistic.java
>
>
> In a multithreaded environment JsonLayout is throwing exceptions and 
> producing fragmented logs. We were able to produce a test that demonstrates 
> this. The following exceptions and broken logging are being seen.
> {code:title=IllegalArgumentException}
> 2017-01-06 16:57:59,173 Thread-98 ERROR An exception occurred processing 
> Appender stdout java.lang.IllegalArgumentException
>   at java.nio.Buffer.position(Buffer.java:244)
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:191)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:447)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:432)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:416)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:402)
>   at 
> org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
>   at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2091)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1988)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1960)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1297)
>   at 
> org.apache.logging.log4j.JSONLayoutIssuesTest$LoggingThread.run(JSONLayoutIssuesTest.java:54)
> {code}
> {code:title=BufferOverflowException}
> 2017-01-06 16:57:59,194 Thread-99 ERROR An exception occurred processing 
> Appender stdout java.nio.BufferOverflowException
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
>   at 
> 

[jira] [Commented] (LOG4J2-1769) JsonLayout Throwing Exceptions And Producing Broken Logs

2017-01-10 Thread Brandon Goodin (JIRA)

[ 
https://issues.apache.org/jira/browse/LOG4J2-1769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15815651#comment-15815651
 ] 

Brandon Goodin commented on LOG4J2-1769:


I tested against 2.7.1-SNAPSHOT on January 10th 
(https://repository.apache.org/content/repositories/snapshots/org/apache/logging/log4j/log4j-api/2.7.1-SNAPSHOT/).
 The tests ran successfully with no exceptions and no fragmented logs.

> JsonLayout Throwing Exceptions And Producing Broken Logs
> 
>
> Key: LOG4J2-1769
> URL: https://issues.apache.org/jira/browse/LOG4J2-1769
> Project: Log4j 2
>  Issue Type: Bug
>  Components: Layouts
>Affects Versions: 2.7
> Environment: All Platforms
>Reporter: Brandon Goodin
>Assignee: Remko Popma
> Fix For: 2.8
>
> Attachments: JSONLayoutIssuesTest.java, RequestStatistic.java, 
> log4j2.xml
>
>
> In a multithreaded environment JsonLayout is throwing exceptions and 
> producing fragmented logs. We were able to produce a test that demonstrates 
> this. The following exceptions and broken logging are being seen.
> {code:title=IllegalArgumentException}
> 2017-01-06 16:57:59,173 Thread-98 ERROR An exception occurred processing 
> Appender stdout java.lang.IllegalArgumentException
>   at java.nio.Buffer.position(Buffer.java:244)
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:191)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:447)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:432)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:416)
>   at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:402)
>   at 
> org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
>   at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2091)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1988)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1960)
>   at 
> org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1297)
>   at 
> org.apache.logging.log4j.JSONLayoutIssuesTest$LoggingThread.run(JSONLayoutIssuesTest.java:54)
> {code}
> {code:title=BufferOverflowException}
> 2017-01-06 16:57:59,194 Thread-99 ERROR An exception occurred processing 
> Appender stdout java.nio.BufferOverflowException
>   at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
>   at 
> org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
>   at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
>   at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
>   at 
>