title: Sonar can't find plugin - Java
body: <p>I am trying to execute a sonar task from java. Below is my code that I am executing..</p>
  
  <pre><code> @Override
    public void execute() {
      Properties allProps = new Properties();
      InputStream in;
      try {
          in = new FileInputStream(new File(getProjectBaseDir()+"\\"+SONAR_PROPERTY_FILE_NAME));
          allProps.load(in);
  
  
      } catch (FileNotFoundException e1) {
          // TODO Auto-generated catch block
          e1.printStackTrace();
      }
     catch (IOException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
      }
      performAnalysis(allProps);
    }
  
    void performAnalysis(Properties properties) {
      EmbeddedRunner.create()
        .addProperties(properties)
        .unmask("org.apache.tools.ant")
        .unmask("org.sonar.ant")
        .execute();
    }
  </code></pre>
  
  <p>When it executes, it throws an Exception:</p>
  
  <pre><code>org.sonar.runner.impl.RunnerException: Unable to execute Sonar
      at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:91)
      at org.sonar.runner.impl.BatchLauncher$1.run(BatchLauncher.java:75)
      at java.security.AccessController.doPrivileged(Native Method)
      at org.sonar.runner.impl.BatchLauncher.doExecute(BatchLauncher.java:69)
      at org.sonar.runner.impl.BatchLauncher.execute(BatchLauncher.java:50)
      at org.sonar.runner.api.EmbeddedRunner.doExecute(EmbeddedRunner.java:102)
      at org.sonar.runner.api.Runner.execute(Runner.java:100)
      at com.ihc.sonarApp.SonarTask.launchAnalysis(SonarTask.java:86)
      at com.ihc.sonarApp.SonarTask.execute(SonarTask.java:76)
      at com.ihc.sonar.util.Task.run(Task.java:81)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: You must install a plugin that supports the language 'Java'
  </code></pre>
  
  <p>I have added these jar's in the buildpath: apache-ant-1.8.2.jar, sonar-ant-task-2.3.jar, sonar-java-plugin-3.0.jar and sonar-scm-svn-plugin-1.0.jar.<br>
  I can access the sonar at localhost:9000.</p>
  
  <p>What am I doing wrong? Is there anthing  a setup or jar that I am missing. </p>