title: Jenkins (hudson) plugin development meet maven-enforcer-plugin:1.1-SNAPSHOT issue
body: <p>I try to develop one jenkins (a.k.a hudson) plugin, and follow the <a href="http://wiki.jenkins-ci.org/display/JENKINS/Plugin+tutorial" rel="nofollow noreferrer">Tutorial</a>, and generated source code tree after <code>mvn -cpu hpi:create</code> command.</p>
  <p>While when I do &quot;mvn package&quot;, it reports error like</p>
  <pre><code>[INFO] Building Unnamed - com.example.jenkins:redmine2:hpi:1.0-SNAPSHOT
  [INFO]    task-segment: [clean]
  [INFO] ------------------------------------------------------------------------
  [INFO] ------------------------------------------------------------------------
  [ERROR] BUILD ERROR
  [INFO] ------------------------------------------------------------------------
  [INFO] Error building POM (may not be this project's POM).
  
  
  Project ID: org.apache.maven.plugins:maven-enforcer-plugin
  
  Reason: Error getting POM for 'org.apache.maven.plugins:maven-enforcer-plugin' from the repository: Failed to resolve artifact, possibly due to a repository list that is not appropriately equipped for this artifact's metadata.
  org.apache.maven.plugins:maven-enforcer-plugin:pom:1.1-SNAPSHOT
  
  from the specified remote repositories:
   nexus (http://maven.nexus.local:8888/nexus/content/groups/public)
  
  for project org.apache.maven.plugins:maven-enforcer-plugin
  </code></pre>
  <p>From my nexus server, it has <code>maven-enforcer-plugin:1.0</code> version only, but this dependence is generated from jenkins by default, anyone can help me to solve it ?</p>
  <ul>
  <li>(How) Can I change to plugin-1.0 version.</li>
  <li>what can I add in nexus server</li>
  </ul>
  <p>I just have basic knowledge of maven.</p>