Edward Serebrinskiy created LOG4J2-1831:
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Summary: NullPointerException in HtmlLayout
Key: LOG4J2-1831
URL: https://issues.apache.org/jira/browse/LOG4J2-1831
Project: Log4j 2
Issue Type: Bug
Components: Layouts
Affects Versions: 2.8
Reporter: Edward Serebrinskiy
Got following NullPointerException by using SMTP appender.
{code}
AsyncLogger error handling event seq=233, value='[ERROR calling class
org.apache.logging.log4j.core.async.RingBufferLogEvent.toString():
java.lang.NullPointerException]':
org.apache.logging.log4j.core.appender.AppenderLoggingException: An exception
occurred processing Appender Mail
at
org.apache.logging.log4j.core.appender.DefaultErrorHandler.error(DefaultErrorHandler.java:75)
at
org.apache.logging.log4j.core.config.AppenderControl.handleAppenderError(AppenderControl.java:165)
at
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:158)
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:448)
at
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:433)
at
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
at
org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:79)
at
org.apache.logging.log4j.core.async.AsyncLogger.actualAsyncLog(AsyncLogger.java:337)
at
org.apache.logging.log4j.core.async.RingBufferLogEvent.execute(RingBufferLogEvent.java:156)
at
org.apache.logging.log4j.core.async.RingBufferLogEventHandler.onEvent(RingBufferLogEventHandler.java:45)
at
org.apache.logging.log4j.core.async.RingBufferLogEventHandler.onEvent(RingBufferLogEventHandler.java:29)
at
com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:129)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.logging.log4j.LoggingException: Error occurred while
sending email
at
org.apache.logging.log4j.core.net.SmtpManager.sendEvents(SmtpManager.java:175)
at
org.apache.logging.log4j.core.appender.SmtpAppender.append(SmtpAppender.java:181)
at
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
... 15 more
Caused by: java.lang.NullPointerException
at
org.apache.logging.log4j.core.layout.HtmlLayout.toSerializable(HtmlLayout.java:170)
at
org.apache.logging.log4j.core.layout.HtmlLayout.toSerializable(HtmlLayout.java:50)
at
org.apache.logging.log4j.core.layout.AbstractStringLayout.toByteArray(AbstractStringLayout.java:301)
at
org.apache.logging.log4j.core.net.SmtpManager.writeBuffer(SmtpManager.java:204)
at
org.apache.logging.log4j.core.net.SmtpManager.writeContent(SmtpManager.java:190)
at
org.apache.logging.log4j.core.net.SmtpManager.formatContentToBytes(SmtpManager.java:182)
at
org.apache.logging.log4j.core.net.SmtpManager.sendEvents(SmtpManager.java:163)
... 17 more
{code}
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