The exception-mapping line maps any Exception at all (since all Java Exceptions are descendants of java.lang.Exception) to the "error" result. This result is defined a couple of lines later, and ...

Rule # 3: Never throw an instance of the base Exception class. Developers should always create their own exceptions to throw. An API that throws an exception is difficult to deal with.

End Sub End Class Extending the Exception with Custom Information But, in the name of passing additional information, you should consider adding properties to your Exception object to hold information ...

Sun releases Java's source code under the GPL--except for some third-party chunks and the compatibility test kit.Video: Gosling on Sun's JavaFX ...