title: Cannot install Groovy Eclipse plugin for Rational Application Developer v9.0 dependency conflict
body: <p>I desire to install the GRECLIPSE plugin from spring in my installation of RAD v9.0 and am coming across a dependency conflict as shown below:</p>
  
  <pre><code>Cannot complete the install because of a conflicting dependency.
    Software being installed: Groovy-Eclipse Feature 2.8.0.xx-20130703-1600-e43-RELEASE (org.codehaus.groovy.eclipse.feature.feature.group 2.8.0.xx-20130703-1600-e43-RELEASE)
    Software currently installed: IBM Software Delivery Platform_1 2014.1.23.172709 (IBM Software Delivery Platform_1 com.ibm.sdp.eclipse.ide 2014.1.23.172709)
    Only one of the following can be installed at once: 
      Java Development Tools Core 3.8.3.xx-20130703-1700-e42-RELEASE (org.eclipse.jdt.core 3.8.3.xx-20130703-1700-e42-RELEASE)
      Java Development Tools Core 3.9.0.xx-20130703-1600-e43-RELEASE (org.eclipse.jdt.core 3.9.0.xx-20130703-1600-e43-RELEASE)
      Java Development Tools Core 3.8.4.v20130621-1225 (org.eclipse.jdt.core 3.8.4.v20130621-1225)
  </code></pre>
  
  <p>I was wondering if there was anyway of resolving these dependency issues without corrupting rad or whether I have no option but to give up hope on being able to edit groovy from within rad.</p>
  
  <p><strong>EDIT:</strong> in response to the comment, i am using the 4.2 update site when this error occurs.</p>