Simplifies the use of the reactor by wrapping the use of
<code>start</code>, <code>run</code>, and <code>stop</code> method
calls.
<p>
Logically the implementation of this method is:
<pre>
start();
while(process()) {}
stop();
</pre>
@throws HandlerException if an unchecked exception is thrown by one of
the handlers - it will be re-thrown attached to an instance of
<code>HandlerException</code>.
Simplifies the use of the reactor by wrapping the use of <code>start</code>, <code>run</code>, and <code>stop</code> method calls. <p> Logically the implementation of this method is: <pre> start(); while(process()) {} stop(); </pre> @throws HandlerException if an unchecked exception is thrown by one of the handlers - it will be re-thrown attached to an instance of <code>HandlerException</code>.