Context Deletion

A context object should be deleted when the context is no longer needed. In JGSS, each peer unilaterally decides when to delete a context and does not need to inform its peer - JGSS does not define a "delete context" token. A context is deleted by calling its dispose method to free up any resources used by the context. Unless is set to null by the application, a disposed context might still be accessible but any attempt to use it will result in an exception.