urce adapter code does not have to change when the 
 <code>ExecutionContext</code> class evolves. For example, more context 
 types could be added to the <code>ExecutionContext</code> class 
 (in the future) without forcing resource adapter implementations 
 to change.</ul>

 Note: Resource adapters that are developed for Jakarta Connectors specification
 compliant application servers, are recommended to use
 the <code>TransactionContext</code> interface instead of this 
 class. See Chapter.11 Generic Work 