 title="class or interface in java.lang" class="externalLink">Object</a>&nbsp;readItem()
         throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></pre>
<div class="block">The readItem method returns the next item
 for chunk processing.
 It returns null to indicate no more items, which
 also means the current chunk will be committed and
 the step will end.</div>
<