title: In GWT, How to use custom widget tag in an .ui.xml file with and without parameters for the tag in the same file
body: <p>I am creating a custom widget, say "CustomWid" in UiBinder.
  And in CustomWid.java file I am writing two constructors 
      one with zero args like
  <code>CustomWid(){....}</code> </p>
  
  <pre><code> another with some args like 
  </code></pre>
  
  <p><code>CustomWid(String a,String b){......}</code>
  So,Now I am using my custom widget in another .ui.xml file,in that .ui.xml file
     it is working fine when we give
      <code>&lt;my:CustomWid/&gt;</code>     alone,
     and also fine when we give like
   <code>&lt;my:CustomWid a="srt1" b="str2"/&gt;</code>         alone
  But "MY PROBLEM" is whenever I am trying to give both the tags in the one .ui.xml as
  <code>&lt;my:CustomWid/&gt;
      &lt;my:CustomWid a="str1" b="str2"/&gt;
  </code>
     Now it is throwing error when i am using both types of tags in a single .ui.xml
  I mean How to use my custom widget tag like a prdefined tag?
  I am using <code>@uiConstructor</code>, but it showing error
  Please developers... I need answer as early as possible </p>