Provides the RMI package. RMI is Remote Method Invocation. It is a
mechanism that enables an object on one Java virtual machine to invoke
methods on an object in another Java virtual machine. Any object that
can be invoked this way must implement the Remote interface. When such
an object is invoked, its arguments are ``marshalled'' and sent from the
local virtual machine to the remote one, where the arguments are
``unmarshalled.'' When the method terminates, the results are
marshalled from the remote machine and sent to the caller's virtual
machine. If the method invocation results in an exception being
thrown, the exception is indicated to caller.
An AccessException is thrown by certain methods of the
java.rmi.Naming class (specifically bind,
rebind, and unbind) and methods of the
java.rmi.activation.ActivationSystem interface to
indicate that the caller does not have permission to perform the action
requested by the method call.
A ServerError is thrown as a result of a remote method
invocation when an Error is thrown while processing
the invocation on the server, either while unmarshalling the arguments,
executing the remote method itself, or marshalling the return value.
A ServerException is thrown as a result of a remote method
invocation when a RemoteException is thrown while processing
the invocation on the server, either while unmarshalling the arguments or
executing the remote method itself.
An UnexpectedException is thrown if the client of a
remote method call receives, as a result of the call, a checked
exception that is not among the checked exception types declared in the
throws clause of the method in the remote interface.
An UnmarshalException can be thrown while unmarshalling the
parameters or results of a remote method call if any of the following
if an exception occurs while unmarshalling the call header
if the protocol for the return value is invalid
if a java.io.IOException occurs unmarshalling
parameters (on the server side) or the return value (on the client side).