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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=27373 NPE when running commons listener against log4J1.2.8 Summary: NPE when running commons listener against log4J1.2.8 Product: Ant Version: 1.7Alpha (nightly) Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: Other Component: Other AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] This is actually an example in erik and my book; we should have regression tested it. 1. Take a build file <project default="fail"> <target name="fail"> <echo message="Hola" /> </target> </project> 2. run it with the listener: ant -listener org.apache.tools.ant.listener.CommonsLoggingListener 3. observer the failure BUILD FAILED java.lang.NullPointerException at org.apache.log4j.helpers.LogLog.error(LogLog.java:120) at org.apache.log4j.Category.callAppenders(Category.java:264) at org.apache.log4j.Category.forcedLog(Category.java:445) at org.apache.log4j.Category.info(Category.java:704) at org.apache.commons.logging.impl.Log4JCategoryLog.info(Log4JCategoryLog.java:148) at org.apache.tools.ant.listener.CommonsLoggingListener.realLog(CommonsLoggingListener.java:264) at org.apache.tools.ant.listener.CommonsLoggingListener.buildStarted(CommonsLoggingListener.java:103) at org.apache.tools.ant.Project.fireBuildStarted(Project.java:1781) at org.apache.tools.ant.Main.runBuild(Main.java:622) at org.apache.tools.ant.Main.startAnt(Main.java:188) at org.apache.tools.ant.launch.Launcher.run(Launcher.java:197) at org.apache.tools.ant.launch.Launcher.main(Launcher.java:56) 4. Line #120 of LogLog is System.err.println(ERR_PREFIX+msg); The problem is that the system.err error is not defined yet. Which is odd, as that is just what the setup code is meant to do; I am very confused by this, as I dont see on a look at the listener setup how we can get a null system.err unless it is not assigned. We may want some extra hooks and checks in the listener to catch this null-value state before handing off to log4j, though a bug fix would be better. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
