title: Assign Javadoc location to maven managed dependencies in Eclipse, where Javadoc is manually installed
body: <p>I downloaded the jdk api doc from oracle site, and really want to see it when i use content assistant...</p>
  
  <p>Since "javaee-api" javadoc is not available in public repo, so i manually installed it to the local repo using command:</p>
  
  <pre><code>mvn install:install-file -Dfile=jdk-6-javadoc-all.zip -DgroupId=javax 
    -DartifactId=javaee-api -Dversion=6.0 -Dpackaging=zip -Dclassifier=javadoc
  </code></pre>
  
  <p>Then I tried:</p>
  
  <ol>
  <li>unzip the jdk, and re-zip only the api document, to ensure the "package-info" something is on the top level inside the zip file</li>
  <li>then I assign the javadoc location from project->properties->java build path....
  but every time i do "OK" and close the dialogue, the javadoc location switched back to "none" automatically...</li>
  </ol>
  
  <p>So I created a new project without maven and add the javaee-api.jar into the project, attach the javadoc... and the javadoc is shown as i typed in my test java file.</p>
  
  <p>But still, it shows no javadoc in all the maven managed projects... even after i restarted the eclipse, clean&amp;install from prompt, delete and re-import the project... it's not working!</p>
  
  <p>related maven dependency xml:</p>
  
  <pre><code>&lt;dependency&gt;
      &lt;groupId&gt;javax&lt;/groupId&gt;
      &lt;artifactId&gt;javaee-api&lt;/artifactId&gt;
      &lt;version&gt;6.0&lt;/version&gt;
      &lt;scope&gt;provided&lt;/scope&gt;
  &lt;/dependency&gt;
  </code></pre>
  
  <p>I have search a lot in the web including stackoverflow here, but still not wokring~ It really make me headache.... Anyone has the solution?</p>