Check that maven-artifact-plugin >= 1.7 is installed only when needed (in the plugin:plugin goal) and not when the plugin is loaded.

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@327708 13f79535-47bb-0310-9956-ffa450edef68

plugin/plugin.jelly

@@ -214,16 +214,13 @@ Try: maven plugin:download -DgroupId=maven -DartifactId=${pluginToTest} -Dversio
 
   </define:taglib>
   
-  <j:if test="${bootstrapping == null}">
-    <assert:assertPluginAvailable groupId="maven" artifactId="maven-artifact-plugin" minRelease="1.7" neededBy="${plugin.artifactId}"/>
-  </j:if>
-
   <goal name="plugin" prereqs="plugin:plugin" description="Build a plugin jar" />
   <goal name="plugin:plugin" description="Build a plugin jar">
     <!-- For some reason a prereq on this causes an internal error... -->
     <attainGoal name="jar:jar" />
     <!-- We can't use it in the bootstrap phase because classes aren't yet build in the artifact plugin -->
     <j:if test="${bootstrapping == null}">
+      <assert:assertPluginAvailable groupId="maven" artifactId="maven-artifact-plugin" minRelease="1.7" neededBy="${plugin.artifactId}"/>
       <artifact:rewritePOM path="${maven.build.dir}/project.xml"/>
       <ant:jar
         jarfile="${maven.build.dir}/${maven.jar.final.name}"