Java Remote Method Invocation:

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Java Remote Method Invocation

A.1 Exceptions During Remote Object Export

When a remote object class is created that extends UnicastRemoteObject, the object is exported, meaning it can receive calls from external Java virtual machines and can be passed in an RMI call as either a parameter or return value. An object can either be exported on an anonymous port or on a specified port. For objects not extended from UnicastRemoteObject, the java.rmi.server.UnicastRemoteObject.exportObject method is used to explicitly export the object.

Exception
Context

java.rmi.StubNotFoundException

Class of stub not found.

Name collision with class of same name as stub causes one of these errors:

Stub can't be instantiated

Stub not of correct class

Bad URL due to wrong codebase.
Stub not of correct class.

java.rmi.server.SkeletonNotFoundException
note: this exception is deprecated as of Java 2 SDK, Standard Edition, v1.2

Class of skeleton not found.

Name collision with class of same name as skeleton causes one of these errors:

Skeleton can't be instantiated

Skeleton not of correct class

Bad URL due to wrong codebase.
Skeleton not of correct class.

java.rmi.server.ExportException

The port is in use by another VM.

Exception	Context
`java.rmi.StubNotFoundException`	Class of stub not found. Name collision with class of same name as stub causes one of these errors: Stub can't be instantiated Stub not of correct class Bad URL due to wrong codebase. Stub not of correct class.
`java.rmi.server.SkeletonNotFoundException` note: this exception is deprecated as of Java 2 SDK, Standard Edition, v1.2	Class of skeleton not found. Name collision with class of same name as skeleton causes one of these errors: Skeleton can't be instantiated Skeleton not of correct class Bad URL due to wrong codebase. Skeleton not of correct class.
`java.rmi.server.ExportException`	The port is in use by another VM.

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