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Posted to users@maven.apache.org by "Algirdas P. Veitas" <av...@allesta.com> on 2004/03/22 17:49:26 UTC

NPE when calling ant targets from maven.xml

We are running into an NullPointerException when trying to invoke a simple 
ant script through our maven.xml.  maven.xml looks like the following:


<project default="run-ant" xmlns:ant="jelly:ant">
  <goal name="run-ant">
    <echo>Hello Maven!</echo>
  </goal>
</project>

And the output we get from running....

> maven run-ant


...is the following....

 __  __
|  \/  |__ _Apache__ ___
| |\/| / _` \ V / -_) ' \  ~ intelligent projects ~
|_|  |_\__,_|\_/\___|_||_|  v. 1.0-rc1-SNAPSHOT

java.lang.NullPointerException
        at org.apache.maven.plugin.PluginManager.attainGoals
(PluginManager.java:
430)
        at org.apache.maven.MavenSession.attainGoals(MavenSession.java:348)
        at org.apache.maven.cli.App.doMain(App.java:543)
        at org.apache.maven.cli.App.main(App.java:1109)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at com.werken.forehead.Forehead.run(Forehead.java:551)
        at com.werken.forehead.Forehead.main(Forehead.java:581)
Total time: 1 seconds
Finished at: Mon Mar 22 08:28:36 PST 2004


Any ideas as to why this is happening?  

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Re: NPE when calling ant targets from maven.xml

Posted by "Algirdas P. Veitas" <av...@allesta.com>.
Mathew,

Thanks that did it....ouch.....

Al

On Mon, 22 Mar 2004 10:28:52 -0800, matthew.hawthorne wrote
> Algirdas P. Veitas wrote:
> >>>java.lang.NullPointerException
> >>>        at org.apache.maven.plugin.PluginManager.attainGoals
> >>>(PluginManager.java:
> >>>430)
> >>>        at org.apache.maven.MavenSession.attainGoals
> > 
> > (MavenSession.java:348)
> > 
> >>>        at org.apache.maven.cli.App.doMain(App.java:543)
> >>>        at org.apache.maven.cli.App.main(App.java:1109)
> >>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 
> Can you confirm that you have a project.xml file alongside your maven.xml?
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org



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Re: NPE when calling ant targets from maven.xml

Posted by "matthew.hawthorne" <ma...@apache.org>.
Algirdas P. Veitas wrote:
>>>java.lang.NullPointerException
>>>        at org.apache.maven.plugin.PluginManager.attainGoals
>>>(PluginManager.java:
>>>430)
>>>        at org.apache.maven.MavenSession.attainGoals
> 
> (MavenSession.java:348)
> 
>>>        at org.apache.maven.cli.App.doMain(App.java:543)
>>>        at org.apache.maven.cli.App.main(App.java:1109)
>>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)


Can you confirm that you have a project.xml file alongside your maven.xml?

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RE: NPE when calling ant targets from maven.xml

Posted by "W. Sean Hennessy" <sh...@goldenhourdata.com>.
do you have a project.xml file?

<?xml version="1.0" encoding="UTF-8"?>
<project></project>

-----Original Message-----
From: Algirdas P. Veitas [mailto:aveitas@allesta.com] 
Sent: Monday, March 22, 2004 9:58 AM
To: Maven Users List
Subject: Re: NPE when calling ant targets from maven.xml


Hi John,

Thanks for the tip, but that did not work either :(

Has anyone run into this before??

Al


On Mon, 22 Mar 2004 12:43:46 -0500, John Casey wrote
> Might be a weird legacy issue from when the ant taglib was part of
> the default namespace...try using <ant:echo> instead of just <echo>
> 
> -john
> 
> On Mon, 2004-03-22 at 11:49, Algirdas P. Veitas wrote:
> > We are running into an NullPointerException when trying to invoke a
simple 
> > ant script through our maven.xml.  maven.xml looks like the 
> > following:
> > 
> > 
> > <project default="run-ant" xmlns:ant="jelly:ant">
> >   <goal name="run-ant">
> >     <echo>Hello Maven!</echo>
> >   </goal>
> > </project>
> > 
> > And the output we get from running....
> > 
> > > maven run-ant
> > 
> > 
> > ...is the following....
> > 
> >  __  __
> > |  \/  |__ _Apache__ ___
> > | |\/| / _` \ V / -_) ' \  ~ intelligent projects ~
> > |_|  |_\__,_|\_/\___|_||_|  v. 1.0-rc1-SNAPSHOT
> > 
> > java.lang.NullPointerException
> >         at org.apache.maven.plugin.PluginManager.attainGoals
> > (PluginManager.java:
> > 430)
> >         at org.apache.maven.MavenSession.attainGoals
(MavenSession.java:348)
> >         at org.apache.maven.cli.App.doMain(App.java:543)
> >         at org.apache.maven.cli.App.main(App.java:1109)
> >         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >         at sun.reflect.NativeMethodAccessorImpl.invoke
> > (NativeMethodAccessorImpl.
> > java:39)
> >         at sun.reflect.DelegatingMethodAccessorImpl.invoke
> > (DelegatingMethodAcces
> > sorImpl.java:25)
> >         at java.lang.reflect.Method.invoke(Method.java:324)
> >         at com.werken.forehead.Forehead.run(Forehead.java:551)
> >         at com.werken.forehead.Forehead.main(Forehead.java:581)
> > Total time: 1 seconds
> > Finished at: Mon Mar 22 08:28:36 PST 2004
> > 
> > 
> > Any ideas as to why this is happening?
> > 
> > --
> > Open WebMail Project (http://openwebmail.org)
> > 
> > 
> > --------------------------------------------------------------------
> > -
> > To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> > For additional commands, e-mail: users-help@maven.apache.org
> --
> John Casey
> jdcasey@commonjava.org
> CommonJava Open Components Project
> http://www.commonjava.org
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org



--
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Re: NPE when calling ant targets from maven.xml

Posted by "Algirdas P. Veitas" <av...@allesta.com>.
Hi John,

Thanks for the tip, but that did not work either :(

Has anyone run into this before??

Al


On Mon, 22 Mar 2004 12:43:46 -0500, John Casey wrote
> Might be a weird legacy issue from when the ant taglib was part of 
> the default namespace...try using <ant:echo> instead of just <echo>
> 
> -john
> 
> On Mon, 2004-03-22 at 11:49, Algirdas P. Veitas wrote:
> > We are running into an NullPointerException when trying to invoke a 
simple 
> > ant script through our maven.xml.  maven.xml looks like the following:
> > 
> > 
> > <project default="run-ant" xmlns:ant="jelly:ant">
> >   <goal name="run-ant">
> >     <echo>Hello Maven!</echo>
> >   </goal>
> > </project>
> > 
> > And the output we get from running....
> > 
> > > maven run-ant
> > 
> > 
> > ...is the following....
> > 
> >  __  __
> > |  \/  |__ _Apache__ ___
> > | |\/| / _` \ V / -_) ' \  ~ intelligent projects ~
> > |_|  |_\__,_|\_/\___|_||_|  v. 1.0-rc1-SNAPSHOT
> > 
> > java.lang.NullPointerException
> >         at org.apache.maven.plugin.PluginManager.attainGoals
> > (PluginManager.java:
> > 430)
> >         at org.apache.maven.MavenSession.attainGoals
(MavenSession.java:348)
> >         at org.apache.maven.cli.App.doMain(App.java:543)
> >         at org.apache.maven.cli.App.main(App.java:1109)
> >         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >         at sun.reflect.NativeMethodAccessorImpl.invoke
> > (NativeMethodAccessorImpl.
> > java:39)
> >         at sun.reflect.DelegatingMethodAccessorImpl.invoke
> > (DelegatingMethodAcces
> > sorImpl.java:25)
> >         at java.lang.reflect.Method.invoke(Method.java:324)
> >         at com.werken.forehead.Forehead.run(Forehead.java:551)
> >         at com.werken.forehead.Forehead.main(Forehead.java:581)
> > Total time: 1 seconds
> > Finished at: Mon Mar 22 08:28:36 PST 2004
> > 
> > 
> > Any ideas as to why this is happening?  
> > 
> > --
> > Open WebMail Project (http://openwebmail.org)
> > 
> > 
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> > For additional commands, e-mail: users-help@maven.apache.org
> -- 
> John Casey
> jdcasey@commonjava.org
> CommonJava Open Components Project
> http://www.commonjava.org
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org



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Re: NPE when calling ant targets from maven.xml

Posted by John Casey <jd...@commonjava.org>.
Might be a weird legacy issue from when the ant taglib was part of the
default namespace...try using <ant:echo> instead of just <echo>

-john

On Mon, 2004-03-22 at 11:49, Algirdas P. Veitas wrote:
> We are running into an NullPointerException when trying to invoke a simple 
> ant script through our maven.xml.  maven.xml looks like the following:
> 
> 
> <project default="run-ant" xmlns:ant="jelly:ant">
>   <goal name="run-ant">
>     <echo>Hello Maven!</echo>
>   </goal>
> </project>
> 
> And the output we get from running....
> 
> > maven run-ant
> 
> 
> ...is the following....
> 
>  __  __
> |  \/  |__ _Apache__ ___
> | |\/| / _` \ V / -_) ' \  ~ intelligent projects ~
> |_|  |_\__,_|\_/\___|_||_|  v. 1.0-rc1-SNAPSHOT
> 
> java.lang.NullPointerException
>         at org.apache.maven.plugin.PluginManager.attainGoals
> (PluginManager.java:
> 430)
>         at org.apache.maven.MavenSession.attainGoals(MavenSession.java:348)
>         at org.apache.maven.cli.App.doMain(App.java:543)
>         at org.apache.maven.cli.App.main(App.java:1109)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke
> (NativeMethodAccessorImpl.
> java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAcces
> sorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:324)
>         at com.werken.forehead.Forehead.run(Forehead.java:551)
>         at com.werken.forehead.Forehead.main(Forehead.java:581)
> Total time: 1 seconds
> Finished at: Mon Mar 22 08:28:36 PST 2004
> 
> 
> Any ideas as to why this is happening?  
> 
> --
> Open WebMail Project (http://openwebmail.org)
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org
-- 
John Casey
jdcasey@commonjava.org
CommonJava Open Components Project
http://www.commonjava.org


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