code: public static void assertNotStatic(final Method method, Class<? extends Annotation> annotation) 
     {
        if (Modifier.isStatic(method.getModifiers()))
        {
           throw annotation == null ? MESSAGES.methodCannotBeStatic(method) : MESSAGES.methodCannotBeStatic2(method, annotation);
        }
     }
docs: Asserts method is not static.
  
  @param method to validate
  @param annotation annotation to propagate in exception message