title: How to replace StringBufferInputStream with StringReader?
body: <p>Using JNLP, I have this line :</p>
  
  <pre><code>File_Save_Service.saveFileDialog(null,null,new StringBufferInputStream("testing"),null);
  </code></pre>
  
  <p>How to replace StringBufferInputStream with StringReader in this line ? The API for StringBufferInputStream says better use StringReader, but how to convert between different types ?</p>