Partial dynamic implementation of java interfaces

A system and method for implementing dynamic interfaces in a JAVA program including methods having a common implementation and other methods to be handled independently. The system comprises a first dynamic proxy object implementing an invocation handler for providing default implementations; a separate object providing implementations of any method in a defined interface that requires independent handling; and, a second dynamic proxy object provided for checking a method definition object for an implementation of the method, and in response, one of: invoking the method on the separate object if the implementation exists, and if the implementation does not exist, invoking the method on the first dynamic proxy object. The second dynamic proxy object thus allows for a single implementation for repetitive methods, while allowing special cases to be handled independently.