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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