Abstract: A Java code directive automatically defines the fields declaring methods in delegation objects such that the compiler generates the corresponding delegation signatures and/or headers. The configurations define a predetermined sequence, or annotation, of compiler interpreted instructions to identify a class as a delegation class from an invoking object, and generate the required signature, or header in the invoking object. The resulting signature satisfies the compiler restriction to implement each method in the delegation class. Particular methods for which a specific implementation is desired may then be superceded or supplemented by specific coded instructions in the invoking object. In this manner, a developer need not manually code the implementation, or signature (so-called “boilerplate code), for each method in a delegated object (class).

Abstract: In a programmed computer system, normal processing results generated by a called method are returned to one or more calling methods by an exception rather than by the more conventional single-type return value. The programmer is granted flexibility through the ability to use multiple normal return types while retaining strong data typing. Better programming practices are promoted through the use of a single exception-technique for handling normal results as well as abnormal (i.e. error) results. The disclosed technique can be used with existing programming languages/environments such as the Java® language, and can provide a basis for new languages/environments that are specifically tailored to this processing technique.