[jira] [Created] (LOG4J2-2510) RollingRandomAccessFileManager throws NPE in closeOutputStream on shutdown

["Denis Kozlov (JIRA)" <ji...@apache.org>]

Denis Kozlov created LOG4J2-2510:
------------------------------------

             Summary: RollingRandomAccessFileManager throws NPE in closeOutputStream on shutdown
                 Key: LOG4J2-2510
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2510
             Project: Log4j 2
          Issue Type: Bug
          Components: Appenders
    Affects Versions: 2.11.1
         Environment: Example config:

status = TRACE
dest = err
name = testconfig

appender.message.type = RollingRandomAccessFile
appender.message.name = Message
appender.message.append = true
appender.message.immediateFlush = true
appender.message.filePattern = ${sys:user.home}/log/%d\{MMddyyHH}00.Message.log
appender.message.layout.type = PatternLayout
appender.message.layout.pattern = %d\{yyyy.MM.dd HH:mm:ss.sss} %p [%t] %m%ex%n%n
appender.message.policy.type = CronTriggeringPolicy
appender.message.policy.schedule = 0 0 * * * ?
appender.message.policy.evaluateOnStartup = true
appender.message.filter.threshold.type = ThresholdFilter
appender.message.filter.threshold.level = WARNING
appender.message.strategy.type = DirectWriteRolloverStrategy
appender.message.strategy.maxFiles = 999999


rootLogger.level = ALL
rootLogger.includeLocation = false
rootLogger.appenderRef.message.ref = Message
 
            Reporter: Denis Kozlov


In configuration where RollingRandomAccessFile appender is used together with DirectWriteRolloverStrategy strategy and no messages got logged in a session I'm getting NullPointerException when closing the application.

Exception call stack is:

2018-11-16 13:53:01,221 pool-1-thread-1 ERROR Caught exception executing shutdown hook null java.lang.NullPointerException
 at org.apache.logging.log4j.core.appender.rolling.RollingRandomAccessFileManager.closeOutputStream(RollingRandomAccessFileManager.java:168)
 at org.apache.logging.log4j.core.appender.OutputStreamManager.releaseSub(OutputStreamManager.java:136)
 at org.apache.logging.log4j.core.appender.rolling.RollingFileManager.releaseSub(RollingFileManager.java:266)
 at org.apache.logging.log4j.core.appender.AbstractManager.stop(AbstractManager.java:86)
 at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.stop(AbstractOutputStreamAppender.java:142)
 at org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender.stop(RollingRandomAccessFileAppender.java:223)
 at org.apache.logging.log4j.core.config.AbstractConfiguration.stop(AbstractConfiguration.java:360)
 at org.apache.logging.log4j.core.LoggerContext.stop(LoggerContext.java:353)
 at org.apache.logging.log4j.core.LoggerContext$1.run(LoggerContext.java:281)
 at org.apache.logging.log4j.core.util.DefaultShutdownCallbackRegistry$RegisteredCancellable.run(DefaultShutdownCallbackRegistry.java:109)
 at org.apache.logging.log4j.core.util.DefaultShutdownCallbackRegistry.run(DefaultShutdownCallbackRegistry.java:74)
 at java.lang.Thread.run(Thread.java:745)



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