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From "Remko Popma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LOG4J2-1474) CronTriggeringPolicy raise exception and fail to rollover log file when checkOnStartup is true.
Date Thu, 06 Oct 2016 05:27:20 GMT

     [ https://issues.apache.org/jira/browse/LOG4J2-1474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Remko Popma updated LOG4J2-1474:
--------------------------------
    Fix Version/s:     (was: 2.7)
                   2.8

> CronTriggeringPolicy raise exception and fail to rollover log file when checkOnStartup
is true.
> -----------------------------------------------------------------------------------------------
>
>                 Key: LOG4J2-1474
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1474
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.6.2
>         Environment: mac osx capiton/jvm 1.7/log4j-core 2.6.2
>            Reporter: yin mingjun
>             Fix For: 2.8
>
>
> I am migrating my project from log1.x to log2.x, and I was using DailyRollingFileAppender
before, and now I am trying to use RollingFileAppender instead it.
> what i am doing is:
> 1. write a config file, with RollingFile's config, and use CronTriggeringPolicy config
log file to roll over at middle-night.
> 2. also set it's CronTriggeringPolicy's evaluateOnStartup=true, require check roll over
at start time.
> 3. I touch my log file to an older time, check it is working alright. 
> my touch command is: 
> {{touch -t 1607220101 biz-pubsvc-service.log}}
> then i start my project, then I got an InvocationTargetException exception...........
> >>>> I then trace into the log4j2's source file, find the exception is caused
by CronTriggeringPolicy's initialize method:
> {code}
>     public void initialize(RollingFileManager aManager) {
>         this.manager = aManager;
>         Date nextDate = new Date(this.manager.getFileTime());
>         this.nextRollDate = this.cronExpression.getNextValidTimeAfter(nextDate);
>         if(this.checkOnStartup && this.nextRollDate.getTime() < System.currentTimeMillis())
{
>             this.rollover(); >>> here, call rollover, need this.future
>         }
>         this.future = this.configuration.getScheduler().scheduleWithCron(this.cronExpression,
new CronTriggeringPolicy.CronTrigger());  >>> here assign this.future first time
>     }
> {code}
> we also refer CronTriggeringPolicy's rollover method's code:
> {code}
>     private void rollover() {
>         this.manager.getPatternProcessor().setPrevFileTime(this.nextRollDate.getTime());
>         this.manager.rollover();
>         Date fireDate = this.future.getFireTime(); >>> raise null pointer exception
here !!! 
>         Calendar cal = Calendar.getInstance();
>         cal.setTime(fireDate);
>         cal.add(13, -1);
>         this.nextRollDate = cal.getTime();
>     }
> {code}
>   I think this BUG is easy to fix up by moving [ this.future = ...] 's assignment just
before the call of [ this.rollover(); ].
> thanks.
> Yin Mingjun
> PS1: my log4j2.xml config file -------------------------------------------------------
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <configuration status="warn">
>   <appenders>
>     <RollingFile name="myFile" fileName="biz-pubsvc-service.log" filePattern="biz-pubsvc-service.log.%d{yyyy-MM-dd}"
append="true">
>       <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}] %-5p [%t] %c{2} - %m%n"/>
>       <CronTriggeringPolicy schedule="0 0 0 * * ?" evaluateOnStartup="true"/>
>     </RollingFile>
>     <Console name="myConsole" target="SYSTEM_OUT">
>       <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}] %-5p [%t] %c{2} - %m%n"/>
>     </Console>
>   </appenders>
>   <loggers>
>     <root level="trace">
>       <appender-ref ref="myConsole"/>
>       <appender-ref ref="myFile"/>
>     </root>
>   </loggers>
> </configuration>
> {code}
> PS2: the raising exception's call stack ----------------------------------------
> {code}
> 2016-07-25 18:30:25,910 main ERROR Unable to invoke factory method in class class org.apache.logging.log4j.core.appender.RollingFileAppender
for element RollingFile. java.lang.reflect.InvocationTargetException
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:132)
> 	at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:918)
> 	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:858)
> 	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:850)
> 	at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:479)
> 	at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:219)
> 	at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:231)
> 	at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:496)
> 	at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:566)
> 	at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:582)
> 	at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:217)
> {code}



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