title: JSNI (call from javascript to java)
body: <p>In Jsni Example to call a java method from javascript we wirte this </p>
  
  <pre><code>            $wnd.testJSNI=
          @com.jsni.client
          .HelloJSNI::testJSNI(Ljava/lang/String;)(test);
  </code></pre>
  
  <p>I try to figure out,but could'nt find  what we exactly meant by Ljava/lang/String?  and do we necessarily pass these arguments?</p>