code: public File getAndroidJar() throws MojoExecutionException
      {
          final String androidJarPath = androidTarget.getPath( IAndroidTarget.ANDROID_JAR );
          if ( androidJarPath == null )
          {
              throw new MojoExecutionException( "No AndroidJar found for " + androidTarget.getLocation() );
          }
          return new File ( androidJarPath );
      }
docs: Resolves the android.jar from this SDK.
  
  @return a <code>File</code> pointing to the android.jar file.
  @throws org.apache.maven.plugin.MojoExecutionException
  if the file can not be resolved.