title: Unable to analyse project with SonarQube
body: <p>I want to analyse project with SonarQube<br>
  while doing this it gives me a error message saying  </p>
  
  <blockquote>
    <p>Error during execution of Sonar
    Error status [command: C:\Program Files (x86)\Java\jdk1.6.0_18\jre\bin\java.exe -cp C:\Users\qfrg\AppData\Local\Temp\sonar-runner-impl7722306846094038579.jar org.sonar.runner.impl.BatchLauncherMain C:\Users\qfrg\AppData\Local\Temp\sonar-project6654886318444556353.properties]: 1</p>
  </blockquote>
  
  <p>In the console log i see this :  </p>
  
  <blockquote>
    <p>Caused by: org.sonar.api.utils.SonarException: The plugin javascript is not supported with Java 1.6.0_18<br>
    Caused by: java.lang.UnsupportedClassVersionError: org/sonar/plugins/javascript/JavaScriptPlugin : Unsupported major.minor version 51.0</p>
  </blockquote>
  
  <p>I installed plugins for findbugs, checkstyle, PMD and M2Eclipse successfully before installing sonarqube, but after installing sonarqube, when i tried to add them again they say that   </p>
  
  <blockquote>
    <p>Unable to connect to repository <a href="http://eclipse-cs.sourceforge.net/update/compositeContent.xml" rel="nofollow">http://eclipse-cs.sourceforge.net/update/compositeContent.xml</a>
    Connection to <a href="http://eclipse-cs.sourceforge.net" rel="nofollow">http://eclipse-cs.sourceforge.net</a> refused</p>
  </blockquote>
  
  <p>Please find my version and plugin details:<br>
      java:  </p>
  
  <blockquote>
    <p>java version "1.6.0_18"
    Java(TM) SE Runtime Environment (build 1.6.0_18-b07)
    Java HotSpot(TM) Client VM (build 16.0-b13, mixed mode, sharing)  </p>
  </blockquote>
  
  <p>maven:  </p>
  
  <blockquote>
    <p>Apache Maven 3.0.3 (r1075438; 2011-02-28 23:01:09+0530)
    Maven home: C:\dev\apache-maven-3.0.3-bin
    Java version: 1.6.0_18, vendor: Sun Microsystems Inc.
    Java home: C:\Program Files (x86)\Java\jdk1.6.0_18\jre
    Default locale: en_US, platform encoding: Cp1252
    OS name: "windows 7", version: "6.1", arch: "x86", family: "windows"  </p>
  </blockquote>
  
  <pre><code>and
  </code></pre>
  
  <blockquote>
    <p>SonarQube Server 4.5.4<br>
       Eclipse : Kepler Service Release 2  </p>
  </blockquote>
  
  <p>And i am using TFS as source control
  Where am i going wrong ?
  Is this the problem with java version ? As, I have seen in some sites that it worked for them when upgraded to 1.7 version of java</p>
  
  <p>Any help greatly appreciated</p>