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http://jira.codehaus.org/browse/MANTRUN-59?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_103449
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Kapil Anand edited comment on MANTRUN-59 at 7/27/07 10:48 AM:
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This could be categorized as a critical bug, considering that most of the mojo 
plugins available do not use the latest version of tools. So if someone needs 
to use the latest version of a tool, antrun is the only option which becomes 
restricted to ant's inbuilt tasks without this fix. 
classpath ref is not working with taskdef although it prints fine with echo, 
however I was able to make the following work with typedef:

<path id="maven-ant-tasks.classpath"                                    
path="${settings.localRepository}/org/apache/maven/maven-artifact-ant/${maven-artifact-ant.version}/maven-ant-tasks-${maven-artifact-ant.version}.jar"/>
<typedef  resource="org/apache/maven/artifact/ant/antlib.xml"
                                                                        
classpathref="maven-ant-tasks.classpath" />

That is I was able to call "pom", "install" and "deploy" tasks.
maven-artifact-antlib was added as a dependency of the antrun plugin


 was:
This could be categorized as a critical bug, considering that most of the mojo 
plugins available do not use the latest version of tools. So if someone needs 
to use the latest version of a tool, antrun is the only option which becomes 
restricted to ant's inbuilt tasks without this fix. 
classpath ref is not working with taskdef although it prints fine with echo, 
however I was able to make the following work:

<path id="maven-ant-tasks.classpath"                                    
path="${settings.localRepository}/org/apache/maven/maven-artifact-ant/${maven-artifact-ant.version}/maven-ant-tasks-${maven-artifact-ant.version}.jar"/>
<typedef  resource="org/apache/maven/artifact/ant/antlib.xml"
                                                                        
classpathref="maven-ant-tasks.classpath" />

That is I was able to call "pom", "install" and "deploy" tasks.
maven-artifact-antlib was added as a dependency of the antrun plugin

> Taskdef/Typedef and Plugin dependencies
> ---------------------------------------
>
>                 Key: MANTRUN-59
>                 URL: http://jira.codehaus.org/browse/MANTRUN-59
>             Project: Maven 2.x Antrun Plugin
>          Issue Type: Bug
>    Affects Versions: 1.1
>            Reporter: ttest
>
> I'm trying to run an ant task during a Maven run. The classes for that Ant 
> task are included in my Maven runtime dependencies(maven.runtime.classpath).
> Here the relevant snippet from my POM:
> <tasks>
>       <path id="my.maven.runtime.classpath">
>               <path refid="maven.runtime.classpath"/>
>       </path>
>       
>       <taskdef name="mostGenerator" 
> classname="com.bmw.most.generator.AntTask" 
> classpathref="maven.runtime.classpath"/>
>       
>       <mostGenerator configurationFile="mostGenerator.configuration" 
> targetDirectory="target/generated-sources/most"/>
> </tasks>
> This works if I don't provide depedencies in the POM for my plugin. But if I 
> do provide depedencies it doesn't work. I consider this to be a bug since 
> that should have no effect on the behaviour of "maven.runtime.classpath". My 
> first guess is that this is a classloading issue. Probably by providing 
> dependencies the classloaders get messed up and that causes the taskdef to 
> not load the classes from maven.runtime.classpath because echoing the value 
> of maven.runtime.classpath still gives the right classpath.
> I have tried all variants of dereferencing maven.runtime.classpath. Didn't 
> work.
> Also which is very interesting if I hardcode the classpath in the taskdef to 
> absolute pathnames it also does not work.

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