JoinManager. This method will cancel all of the service's managed leases that were granted by the lookup services with which the service is registered, and will terminate all threads that have been created. Note that if the discovery manager employed by the instance of this class that is being terminated was created by the instance itself, this method will terminate all discovery processing being performed by that manager object on behalf of the service; otherwise, the discovery manager supplied by the service is still valid.
Whether an instance of the LeaseRenewalManager class was supplied by the service or created by the JoinManager itself, any reference to that object obtained by the service prior to termination will still be valid after termination. Note also this class makes certain concurrency guarantees with respect to an invocation of the terminate method while other method invocations are in progress. The termination process will not begin until completion of all invocations of the methods defined in the public interface of this class. Furthermore, once the termination process has begun, no further remote method invocations will be made by this class, and all other method invocations made on this class will not return until the termination process has completed.
Upon completion of the termination process, the semantics of all current and future method invocations on the instance of this class that was just terminated are undefined; although the reference to the LeaseRenewalManager object employed by that instance of JoinManager is still valid.
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