title: PyDev not appearing in Eclipse despite having Java 7
body: <p>I am running Eclipse Kepler (4.3.2.M20140221-1700) (64 bit) in Ubuntu 12.04 (64 bit) with openjdk-jdk/jre (7u51-2.4.4-0ubuntu0.12.04.2) installed.</p>
  
  <p>I installed PyDev for Eclipse (3.3.3.201401272249) through the Eclipse Marketplace, but it does not seem to appear when Eclipse restarted. Additionally, though i can see the plugin installed under 'installed software' in my installation details, it is not listed under 'plug-ins'.</p>
  
  <p>This initially sounds like a duplicate of an extremely common issue that happens when eclipse is not run with Java 7 (<a href="http://pydev.org/download.html#pydev-does-not-appear-after-install" rel="nofollow noreferrer">PyDev.org</a>, <a href="https://stackoverflow.com/questions/19873064/pydev-not-showing-up-in-eclipse">PyDev not showing up in eclipse</a>, <a href="https://stackoverflow.com/questions/3498655/how-to-configure-eclipse-for-pydev-python-doesnt-appear-in-preferences-window">...Python doesn't appear in preferences window</a>, <a href="https://stackoverflow.com/questions/19827404/pydev-not-recognized-in-eclipse">Pydev not recognized in eclipse</a>), yet I've ruled out the possibility by using the numerous methods these other questions outline.</p>
  
  <p>I verified that my installation is using Java 7 by checking both my java alternatives and my eclipse configuration information.</p>
  
  <pre><code>$ update-java-alternatives -l
  java-1.7.0-openjdk-amd64 1051 /usr/lib/jvm/java-1.7.0-openjdk-amd64
  </code></pre>
  
  <p>I examined my 'Eclipse Installation Details->Configuration' tab to see what version of java was being used (as a sanity check against a bundled JRE, though that seemed highly unlikely for stock Kepler). The following lines lead me to believe that the System java was in use (and consequently, the single alternative above):</p>
  
  <pre><code>java.home=/usr/lib/jvm/java-7-openjdk-amd64/jre
  java.io.tmpdir=/tmp
  java.library.path=/usr/java/packages/lib/amd64:/usr/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib
  java.runtime.name=OpenJDK Runtime Environment
  java.runtime.version=1.7.0_51-b00
  </code></pre>
  
  <p>Other applicable suggestions in these other questions (ie: "...must have a JDK...") seem to have already been addressed in this current setup wherever possible. This question is not a duplicate of the existing ones, so please do not duplicate answers from existing questions. Existing answers have already been attempted.</p>
  
  <p><strong>EDIT 1</strong>
  In an attempt to diagnose the plugin itself, I have attempted to use the OSGI console in order to identify the status of the plugin as per <a href="https://stackoverflow.com/a/7777020/2528639">this answer</a>. The plugin is not listed, so I am following steps at "<a href="http://wiki.eclipse.org/Where_Is_My_Bundle" rel="nofollow noreferrer">Where is my Bundle</a>" in order to attempt to resolve any status or log information that may be available.</p>
  
  <p><strong>EDIT 2</strong>
  The installation is located in a user directory and was installed by simply unzipping the distribution. My user has full rights to modify the installation directory.</p>