code: public MethodInfo addMethod(String declaration) {
          MethodDeclarationParser p = new MethodDeclarationParser(declaration);
          return addMethod(p.getModifiers(), p.getMethodName(),
                           p.getReturnType(), p.getParameters());
      }
docs: Add a method to this class by declaration.
  
  @throws IllegalArgumentException if declaration syntax is wrong
  @see MethodDeclarationParser