code: @Override
      void execute(int opcode, int arg, ClassWriter cw, Item item) {
          super.execute(opcode, arg, cw, item);
          Frame successor = new Frame();
          merge(cw, successor, 0);
          set(successor);
          owner.inputStackTop = 0;
      }
docs: Sets this CurrentFrame to the input stack map frame of the next "current"
  instruction, i.e. the instruction just after the given one. It is assumed
  that the value of this object when this method is called is the stack map
  frame status just before the given instruction is executed.