title: Do process supported by Java mean the same as process supported by the underlying OS?
body: <p>Java supports multiprocess via <code>Process</code>, <code>ProcessBuilder</code> and <code>Runtime.exec()</code>...</p>
  
  <p>Do process supported by Java mean the same as process supported by the underlying OS?</p>
  
  <p>Or is process supported by Java a different concept from process supported by the underlying OS?</p>
  
  <p>Is there some mapping between processes supported by Java and processes supported by the underlying OS?</p>
  
  <p>Thanks.</p>