title: spring batch: multiple readers one processor, sequential processing
body: <p>I have a reader that reads from a datasource, a processor, and writer in spring batch.</p>
  
  <p>Now I have a situation where i need to read from two datasource and send it to the single processor? I tried creating my own <code>ItemStreamReader</code> but it runs in parallel and it gives me result set closed exception when the two datasource returns different length result size.</p>
  
  <p>How can this be achieved? Any help is appreciated.</p>
  
  <p>thanks
  Sanjeev</p>