A Method provides information about, and access to, a single method on a class or interface. The reflected method may be a class method or an instance method (including an abstract method).
A Method permits widening conversions to occur when matching the actual parameters to invokewith the underlying method's formal parameters, but it throws an IllegalArgumentException if a narrowing conversion would occur.
Need to add method body, a la Matt's codebuffer. That may or may not imply retaining the final return value separately and passing in a how-to-use-it mechanism...?