[jira] [Created] (LOG4J2-2767) NPE in RoutingAppender without pattern

["Christoph Kaser (Jira)" <ji...@apache.org>]

Christoph Kaser created LOG4J2-2767:
---------------------------------------

             Summary: NPE in RoutingAppender without pattern
                 Key: LOG4J2-2767
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2767
             Project: Log4j 2
          Issue Type: Bug
          Components: Appenders
            Reporter: Christoph Kaser


When I create a RoutingAppender that only has one route and no pattern, I get a NPE as soon as an entry is written into the appender:
{noformat}
org.apache.logging.log4j.core.appender.AppenderLoggingException: An exception occurred processing Appender Routing	at org.apache.logging.log4j.core.appender.DefaultErrorHandler.error(DefaultErrorHandler.java:93)
	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:508)
	at org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:468)
	at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:451)
	at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:426)
	at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:82)
	at org.apache.logging.log4j.core.Logger.log(Logger.java:158)
	at org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2135)
	at org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2089)
	at org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2072)
	at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1773)
	at org.apache.logging.log4j.EventLogger.logEvent(EventLogger.java:47)
	at org.apache.logging.log4j.core.appender.routing.RoutingAppenderNoPatternTest.routingTest(RoutingAppenderNoPatternTest.java:59)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.apache.logging.log4j.junit.LoggerContextRule$1.evaluate(LoggerContextRule.java:123)
	at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
Caused by: java.lang.NullPointerException
	at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
	at org.apache.logging.log4j.core.appender.routing.RoutingAppender.getAppender(RoutingAppender.java:300)
	at org.apache.logging.log4j.core.appender.routing.RoutingAppender.getControl(RoutingAppender.java:263)
	at org.apache.logging.log4j.core.appender.routing.RoutingAppender.append(RoutingAppender.java:242)
	at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
	... 41 more{noformat}
This happens for the following configuration:
{code:java}
<Routing name="Routing" ignoreExceptions="false">
  <Routes>
    <Route>
      <RollingFile name="Routing-${sd:type}" fileName="${filename}"
                   filePattern="target/routing1/test1-${sd:type}.%i.log.gz"
                   >
        <PatternLayout>
          <Pattern>%d %p %C{1.} [%t] %m%n</Pattern>
        </PatternLayout>
        <SizeBasedTriggeringPolicy size="500" />
      </RollingFile>
    </Route>
  </Routes>
</Routing>
{code}
 



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