package org.apidesign.stringandbuffer;

 /** This code compiles on 1.3 as well as 1.4. However, if compiled on

  * 1.4, it will throw <code>NoSuchMethodError</code> when executed on

  * 1.3. How is that possible?

  */

 public class AppendStringBuffer {

     static {

         // BEGIN: theory.appendstringbuffer

         StringBuffer sb = new StringBuffer();

         StringBuffer another = new StringBuffer();

         sb.append(another);

         // END: theory.appendstringbuffer

     }

 }