title: java chain exception
body: <p>i have question regarding chain exception</p>
  
  <pre><code>try{ } catch(Exception e) { throw new SomeException(); } 
  </code></pre>
  
  <p>if i do like this
  my eclipse will prompt error at line throw new SomeException();
  stating "unhandled exception"
  and i must put something like </p>
  
  <pre><code>try{ } catch(Exception e) {
                              try{ throw new SomeException(); } catch(Exception e){} 
                             }
  </code></pre>
  
  <p>why must do like this
  because tutorial that i read .example <a href="http://java.sys-con.com/node/36579" rel="nofollow noreferrer">http://java.sys-con.com/node/36579</a> , does not have to do this</p>