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Subject: RE: "java.lang.ClassCastException: org.apache.tools.ant.types.Path"
 error after using <ant> task within ant
Date: Fri, 22 Sep 2006 15:55:18 +0200
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Thread-Topic: "java.lang.ClassCastException: org.apache.tools.ant.types.Path"
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From: "David Corley \(AT/LMI\)" <david.corley@ericsson.com>
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I'll throw something together as a test, and file a bug report. Thanks
Pete.

/Dave=20

-----Original Message-----
From: Peter Reilly [mailto:peter.kitt.reilly@gmail.com]=20
Sent: 22 September 2006 15:37
To: Ant Users List
Subject: Re: "java.lang.ClassCastException:
org.apache.tools.ant.types.Path" error after using <ant> task within ant

The follows triggers a bug similar to your description:

<project>
  <macrodef name=3D"bug">
    <sequential>
      <path id=3D"b" path=3D"."/>
    </sequential>
  </macrodef>
  <script language=3D"beanshell"/>
  <bug/>
</project>

C:\work\learning\ref\macro.xml:8: java.lang.ClassCastException:
org.apache.tools.ant.types.Path cannot be cast to
org.apache.tools.ant.UnknownElement


I think that this could also be triggered by <ant>

Peter

On 9/22/06, Peter Reilly <peter.kitt.reilly@gmail.com> wrote:
>
> This is a bug.
>
> Can you open a bug request for this please.
>
> Do you use the id tag ? (references) in macro definitions.
>
> The way references work at the moment could (I think) cause the=20
> symtoms you describe.
> see: http://issues.apache.org/bugzilla/show_bug.cgi?id=3D34458
> for an example.
>
> Please try to get a small build file/s that shows the problem.
> Peter
>
>
> On 9/22/06, David Corley (AT/LMI) <david.corley@ericsson.com> wrote:
> >
> > Beffling is the word. I'm pretty familiar with Ant, and this is the=20
> > first time I've seen such a low level error.
> >
> > The pre and post targets are filled with tasks of the end-users
choice.
> > But for the example below and in the code that's causing the error,=20
> > I have just the one <echo> task in the pre target.
> >
> >
> > I should explain my reasoning for carrying things out the way I do.
> > Basically, I've defined a core build.xml for every developer on our=20
> > site. It allows them to only have to set their classpaths and=20
> > properties, and everything else will just work for them. So far it's

> > been quite succesful. But we came across a stumbling block where=20
> > some developers wanted to run tests against code they had just
compiled.
> > Normally the developers would have stubs for their unit tests, but=20
> > some developers need to run against a live server. And the server=20
> > code may have just been compiled as part of the build.
> > Unfortunately the core build doesn't facilitate the running of any=20
> > compiled code, aside from the unit tests, which are run with the ant

> > <junit> task.
> >
> > So I came up with a workaround, where I allow the developers to do=20
> > what they like right before the unit testing starts and straight=20
> > after it finishes.
> > It means the core build.xml is still untampered, and the used get to

> > run
> >
> > whatever <java> tasks need to be run before testing with their=20
> > custom junit-setup.xml targets. I suppose I could use=20
> > <import>....but why should I have to? The <ant>  task should work
just fine... No?
> >
> > My core Ant script is called with a -lib argument to include some=20
> > extra jars (javamail, junit, jaf), and I'm just wondering if they=20
> > might cause any problems.
> >
> > I'll get the developer experiencing the problem to change the code=20
> > to use an import statement and see how it goes.....but I still=20
> > reckon there's a bug somewhere in Ant....
> >
> > /Dave
> >
> >
> >
> > -----Original Message-----
> > From: Dominique Devienne [mailto: ddevienne@gmail.com]
> > Sent: 22 September 2006 14:51
> > To: Ant Users List
> > Subject: Re: "java.lang.ClassCastException:
> > org.apache.tools.ant.types.Path" error after using <ant> task within

> > ant
> >
> > >                <target name=3D"pre">
> > >                  <echo message=3D"pre-junit"
> > >                </target>
> > >
> > >                <target name=3D"post">
> > >                </target>
> >
> > Hmmm, this is baffling indeed. Are the pre and post target above=20
> > really empty? If not, do they depend on any properties or references

> > from the main build you pass in thru <ant>? --DD
> >
> > PS: Note that your approach to this problem seems a bit wrong to me.

> > I would have used <import> rather than your combination of <ant> and

> > <antcall>
> >
> > --------------------------------------------------------------------
> > - To unsubscribe, e-mail: user-unsubscribe@ant.apache.org For=20
> > additional commands, e-mail: user-help@ant.apache.org
> >
> >
> > --------------------------------------------------------------------
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> >
> >
>

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