code>ManagedScheduledExecutorService</code></a>
 when the task is submitted. 
 If <code>task</code> implements <code>ManagedTask</code> with non-empty 
 execution properties, the <code>Runnable</code> returned will contain the union
 of the execution properties specified in the <code>task</code> and the <code>executionProperties</code> 
 argument, with the latter taking precedence if the same property key is 
 specified in both.
 After the method is called, further changes to the <code>Map</code> 
 object w