I'm trying to use the Ant libs for Maven 2.0.2 to handle dependencies
(and to unpack some files needed during the ant build).
I'm using a pom.xml in which I've bound the maven dependency plugin to
the "validate" phase,using the "unpack" goal:
pom.xml:
...
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>dependency-maven-plugin</artifactId>
<executions>
<execution>
<id>unpack</id>
<phase>validate</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<type>jar</type>
</artifactItem>
</artifactItems>
<outputDirectory>unpacked</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
My ant file has:
build.xml:
<project default="usage" name="My App 2"
xmlns:artifact="urn:maven-artifact-ant"
>
<property name="maven.ant.jar"
value="/devtools/maven-artifact-ant-2.0.2-dep/maven-artifact-ant-2.0.2-d
ep.jar"/>
<typedef resource="org/apache/maven/artifact/ant/antlib.xml"
uri="urn:maven-artifact-ant">
<classpath>
<pathelement location="${maven.ant.jar}"/>
</classpath>
</typedef>
<artifact:pom id="maven.project" file="pom.xml" />
<target name="test">
<artifact:install>
<pom refid="maven.project"/>
</artifact:install>
</target>
</project>
The dependency is fetched and unpacked as expected when I run maven
directly via :
mvn validate
or
mvn install
However, when I run ant (to try and trigger the fetch) via:
ant test
I get:
Buildfile: build.xml
test:
BUILD FAILED
C:\ibttest\my-app2\build.xml:41: java.lang.NullPointerException
Total time: 1 second
I've tried binding the "unpack" to the install phase also, but this
gives the same error.
Is there a better way to use the AntLib to pull down (and unpack)
dependencies at the start of an ant build process?
Related, but maybe off topic: Is it possible to the "validate" goal
directly using the AntLib?
Thanks,
Dan
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