code: protected final InstructionList build_il(Instruction... instructions) {
      InstructionList il = new InstructionList();
      for (Instruction inst : instructions) {
        append_inst(il, inst);
      }
      return il;
    }
docs: Convenience function to build an instruction list.
  
  @param instructions a variable number of BCEL instructions
  @return an InstructionList