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testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.Parameter Exception
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Ken Geis  
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 More options Dec 6 2011, 7:28 pm
From: Ken Geis <geis....@gmail.com>
Date: Tue, 6 Dec 2011 16:28:11 -0800 (PST)
Local: Tues, Dec 6 2011 7:28 pm
Subject: testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.ParameterException
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I've attached a simple project that seems like it should work, but I get

   [testng] Exception in thread "main" java.lang.NoClassDefFoundError:

> com/beust/jcommander/ParameterException
> ...

   [testng] Caused by: java.lang.ClassNotFoundException:

> com.beust.jcommander.ParameterException

I print the classpath is printed before TestNG is run, and it's clear that
JCommander is in the classpath. Now from the size, the testng-6.3.1.jar
that's in the Maven repo looks like the distribution jar that has no BSH or
Guice. BSH is on the classpath. If you add Guice, it still fails. If you
instead use the full testng-6.3.1.jar that's distributed in the TestNG zip,
it works fine.

Please look into this.

  test.zip
2K Download

 
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Cédric Beust ♔  
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 More options Dec 6 2011, 7:41 pm
From: Cédric Beust ♔ <ced...@beust.com>
Date: Tue, 6 Dec 2011 16:41:59 -0800
Local: Tues, Dec 6 2011 7:41 pm
Subject: Re: [testng-dev] testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.ParameterException
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Note that this is a NoClassDefFoundException, not ClassNotFoundException...

You're missing something else in your classpath.

--
Cédric


 
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Ken Geis  
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 More options Dec 6 2011, 7:58 pm
From: Ken Geis <geis....@gmail.com>
Date: Tue, 6 Dec 2011 16:58:01 -0800 (PST)
Local: Tues, Dec 6 2011 7:58 pm
Subject: Re: [testng-dev] testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.ParameterException
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*Caused by: java.lang.ClassNotFoundException*
*
*
This project is too simple to be missing anything. It only references one
class, org.testng.annotations.Test. If there is something missing on the
classpath, I'm saying it's not my fault. There seems to be something wrong
with the jars or poms that are on the Maven repo.


 
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Ken Geis  
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 More options Dec 6 2011, 8:00 pm
From: Ken Geis <geis....@gmail.com>
Date: Tue, 6 Dec 2011 17:00:18 -0800 (PST)
Local: Tues, Dec 6 2011 8:00 pm
Subject: Re: testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.ParameterException
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Similar thing was posted on StackOverflow<http://stackoverflow.com/questions/7100821/suddenly-cant-run-testng-t...>.
It wasn't fully resolved (the OP used a workaround), so I'm posting a test
case that shows the problem.


 
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Cédric Beust ♔  
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 More options Dec 6 2011, 8:12 pm
From: Cédric Beust ♔ <ced...@beust.com>
Date: Tue, 6 Dec 2011 17:12:40 -0800
Local: Tues, Dec 6 2011 8:12 pm
Subject: Re: [testng-dev] Re: testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.ParameterException
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testng.jar in the Maven repository has *no* dependencies, only the TestNG
classes. By definition.

If you're using ivy, it should have downloaded all the classes you need,
you might want to rm your .ivy directory and try to compile again, just to
make sure you don't have a corrupt set of jar files.

--
Cédric


 
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Ken Geis  
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 More options Dec 6 2011, 8:40 pm
From: Ken Geis <geis....@gmail.com>
Date: Tue, 6 Dec 2011 17:40:08 -0800 (PST)
Local: Tues, Dec 6 2011 8:40 pm
Subject: Re: [testng-dev] Re: testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.ParameterException
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Already tried that.


 
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Cédric Beust ♔  
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 More options Dec 6 2011, 9:15 pm
From: Cédric Beust ♔ <ced...@beust.com>
Date: Tue, 6 Dec 2011 18:15:28 -0800
Local: Tues, Dec 6 2011 9:15 pm
Subject: Re: [testng-dev] Re: testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.ParameterException
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I'm seeing the same problem you are, even with older versions of TestNG.
And JCommander is indeed in the classpath that ivy is displaying:

$ javap -classpath
/Users/cedric/.ivy2/cache/org.testng/testng/jars/testng-6.3.jar:/Users/cedr ic/.ivy2/cache/junit/junit/jars/junit-3.8.1.jar:/Users/cedric/.ivy2/cache/o rg.beanshell/bsh/jars/bsh-2.0b4.jar:/Users/cedric/.ivy2/cache/com.beust/jco mmander/jars/jcommander-1.12.jar:/Users/cedric/.ivy2/cache/org.yaml/snakeya ml/jars/snakeyaml-1.6.jar
com.beust.jcommander.ParameterException

Compiled from "ParameterException.java"
public class com.beust.jcommander.ParameterException extends
java.lang.RuntimeException{
    public com.beust.jcommander.ParameterException(java.lang.Throwable);
    public com.beust.jcommander.ParameterException(java.lang.String);

}

No idea what's going on, I suspect a bug in ivy.

--
Cédric


 
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Ken Geis  
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 More options Dec 7 2011, 12:33 am
From: Ken Geis <geis....@gmail.com>
Date: Tue, 6 Dec 2011 21:33:52 -0800 (PST)
Local: Wed, Dec 7 2011 12:33 am
Subject: Re: [testng-dev] Re: testng fails from Ant/Ivy with ClassNotFoundException: com.beust.jcommander.ParameterException
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Thank you very much for looking into it. Sorry for the accusations.

I figured it out. The example I gave was never going to work because it
needs to have TestNG on the runtime classpath inside the <testng> task. My
project was not working because I was misunderstanding the Ant pathelement
path attribute. I was using

       <pathelement path="${testng.classpath}" />                      

when I needed to use

       <pathelement path="${toString:testng.classpath}" />                


 
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