code: private String getReplicaMethodDelegationCode(Class<?> clazz, CtMethod ctMethod, String classOrInstanceToDelegateTo)
              throws NotFoundException {
          StringBuilder builder = new StringBuilder();
          builder.append("{java.lang.reflect.Method originalMethod = ");
          builder.append(clazz.getName());
          builder.append(".class.getDeclaredMethod(\"");
          builder.append(ctMethod.getName());
          builder.append("\", ");
          final String parametersAsString = getParametersAsString(getParameterTypes(ctMethod));
          if ("".equals(parametersAsString)) {
              builder.append("null");
          } else {
              builder.append(parametersAsString);
          }
          builder.append(");\n");
          builder.append("originalMethod.setAccessible(true);\n");
          final CtClass returnType = ctMethod.getReturnType();
          final boolean isVoid = returnType.equals(CtClass.voidType);
          if (!isVoid) {
              builder.append("return (");
              builder.append(returnType.getName());
              builder.append(") ");
          }
          builder.append("originalMethod.invoke(");
          if (Modifier.isStatic(ctMethod.getModifiers()) || classOrInstanceToDelegateTo == null) {
              builder.append(clazz.getName());
              builder.append(".class");
          } else {
              builder.append(classOrInstanceToDelegateTo);
          }
          builder.append(", $args);}");
          return builder.toString();
      }
docs: /*
  Invokes a instance method of the original instance. This enables partial
  mocking of system classes.