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From "Peter Reilly" <peter.kitt.rei...@gmail.com>
Subject Re: Problem with Cactus and Ant
Date Tue, 30 Oct 2007 10:46:01 GMT
It may be easier to copy all of junittask and modify it rather
than extending it.

JUnitTask is  complicated and tricky - it needs to handle
classloading to allow junit.jar to be placed in a nested <classpath>

Details on the implementation will change from ant release to ant
release - the task
(and most others!) should have been made final when first written..

Peter


On 10/30/07, Petar Tahchiev <paranoiabla@gmail.com> wrote:
> So actually you have to look here:
> http://svn.apache.org/repos/asf/jakarta/cactus/trunk/integration/ant/src/java/org/apache/cactus/integration/ant/CactusTask.java
> and this is the peace of code that actually executes the test:
> ===========================================
>
> private void executeInContainer(ContainerWrapper theWrapper,
>         DeployableFile theFile)
>     {
>         log("Starting up container", Project.MSG_VERBOSE);
>         ContainerRunner runner = new ContainerRunner(theWrapper);
>         runner.setLogger(new AntLogger(getProject()));
>         try
>         {
>             URL url = new URL(theWrapper.getBaseURL() + "/"
>                 + theFile.getTestContext()
>                 + theFile.getServletRedirectorMapping()
>                 + "?Cactus_Service=RUN_TEST");
>             runner.setURL(url);
>
>             runner.startUpContainer();
>             log("Server name retrieved from 'Server' HTTP header: ["
>                 + runner.getServerName() + "]", Project.MSG_VERBOSE);
>             try
>             {
>                 Enumeration tests = getIndividualTests();
>                 while (tests.hasMoreElements())
>                 {
>                     JUnitTest test = (JUnitTest) tests.nextElement();
>                     if (test.shouldRun(getProject())
>                      && !theWrapper.isExcluded(test.getName()))
>                     {
>                         if (theWrapper.getToDir() != null)
>                         {
>                             test.setTodir(theWrapper.getToDir());
>                         }
>                         execute(test);
>                     }
>                 }
>             }
>             finally
>             {
>                 log("Shutting down container", Project.MSG_VERBOSE);
>                 runner.shutDownContainer();
>                 log("Container shut down", Project.MSG_VERBOSE);
>             }
>         }
> ===========================================
>
> and the test-case in "execute(test)" is NOT null - I explicitly checked it.
> In my opinion the only reason for the NLP is because the delegate
> object is null :-(.
>
> Any suggestions?
>
> 2007/10/28, Petar Tahchiev <paranoiabla@gmail.com>:
> >
> > Hi guys,
> >
> > my name is Petar Tahchiev and I am one of the developers of Jakarta
> > Cactus.
> > I have a really strange problem, when using Ant > 1.6.5.
> > When trying to execute my cactus tasks, I invoke actually the JunitTask, I
> > get the
> > following exception:
> >
> > -----------------------------------------------------------------------------
> > /home/peter/bin/workspace/TestCactus/build.xml:93:
> > java.lang.NullPointerException
> >         at org.apache.tools.ant.dispatch.DispatchUtils.execute (
> > DispatchUtils.java:115)
> >         at org.apache.tools.ant.Task.perform(Task.java:348)
> >         at org.apache.tools.ant.Target.execute(Target.java:357)
> >         at org.apache.tools.ant.Target.performTasks(Target.java :385)
> >         at org.apache.tools.ant.Project.executeSortedTargets(Project.java
> > :1329)
> >         at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
> >         at org.apache.tools.ant.helper.DefaultExecutor.executeTargets (
> > DefaultExecutor.java:41)
> >         at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
> >         at org.apache.tools.ant.Main.runBuild(Main.java:758)
> >         at org.apache.tools.ant.Main.startAnt(Main.java :217)
> >         at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
> >         at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
> > Caused by: java.lang.NullPointerException
> >         at
> > org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeInVM (
> > JUnitTask.java:1272)
> >         at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(
> > JUnitTask.java:823)
> >         at org.apache.cactus.integration.ant.CactusTask.executeInContainer
> > (CactusTask.java:453)
> >         at org.apache.cactus.integration.ant.CactusTask.execute(
> > CactusTask.java:204)
> >         at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java
> > :288)
> >         at sun.reflect.GeneratedMethodAccessor2.invoke (Unknown Source)
> >         at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> > DelegatingMethodAccessorImpl.java:25)
> >         at java.lang.reflect.Method.invoke(Method.java:585)
> >         at org.apache.tools.ant.dispatch.DispatchUtils.execute (
> > DispatchUtils.java:105)
> >         ... 11 more
> > --- Nested Exception ---
> > java.lang.NullPointerException
> >         at
> > org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeInVM(
> > JUnitTask.java:1272)
> >         at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(
> > JUnitTask.java:823)
> >         at org.apache.cactus.integration.ant.CactusTask.executeInContainer
> > (CactusTask.java:453)
> >         at org.apache.cactus.integration.ant.CactusTask.execute (
> > CactusTask.java:204)
> >         at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java
> > :288)
> >         at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
> >         at sun.reflect.DelegatingMethodAccessorImpl.invoke (
> > DelegatingMethodAccessorImpl.java:25)
> >         at java.lang.reflect.Method.invoke(Method.java:585)
> >         at org.apache.tools.ant.dispatch.DispatchUtils.execute(
> > DispatchUtils.java:105)
> >         at org.apache.tools.ant.Task.perform (Task.java:348)
> >         at org.apache.tools.ant.Target.execute(Target.java:357)
> >         at org.apache.tools.ant.Target.performTasks(Target.java:385)
> >         at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
> >         at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
> >         at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(
> > DefaultExecutor.java:41)
> >         at org.apache.tools.ant.Project.executeTargets (Project.java:1181)
> >         at org.apache.tools.ant.Main.runBuild(Main.java:758)
> >         at org.apache.tools.ant.Main.startAnt(Main.java:217)
> >         at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
> >         at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
> >
> > Total time: 8 seconds
> >
> > ------------------------------------------------------------------------------------------------
> >
> > However, if I downgrade to Ant 1.6.5 I don't get this exception and
> > everything passes
> > smoothly. Looking at the source code of the task, on line 1272 here is
> > what we see:
> >
> > runner = delegate.newJUnitTestRunner (test, test.getHaltonerror(),
> >                                          test.getFiltertrace(),
> >                                          test.getHaltonfailure(), false,
> >                                          true, classLoader);
> > so it turns out that delegate is null !!!
> > In Ant 1.6.5. there seems that this "delegate" object is missing. Also
> > when we look on line 799
> > we see that delegate is explicitly nullified:
> > ------------------------------------------------
> >
> >  delegate = null;
> >
> > ------------------------------------------------
> >
> > ????
> >
> > Does these thoughts make any sense, and if yes, how can I resolve my
> > problems.
> >
> > Thank you.
> >
> > --
> > Regards, Petar!
> > Karlovo, Bulgaria.
> >
> > EOOXML Objections
> > http://www.grokdoc.net/index.php/EOOXML_objections
> >
> > Public PGP Key at: https://keyserver1.pgp.com/vkd/DownloadKey.event?keyid=0x19658550C3110611
> >
> > Key Fingerprint: A369 A7EE 61BC 93A3 CDFF  55A5 1965 8550 C311 0611
>
>
>
>
> --
> Regards, Petar!
> Karlovo, Bulgaria.
>
> EOOXML Objections
> http://www.grokdoc.net/index.php/EOOXML_objections
>
> Public PGP Key at:
> https://keyserver1.pgp.com/vkd/DownloadKey.event?keyid=0x19658550C3110611
> Key Fingerprint: A369 A7EE 61BC 93A3 CDFF  55A5 1965 8550 C311 0611
>

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