void JvmtiManageCapabilities::get_potential_capabilities(const jvmtiCapabilities *current,
                                                         const jvmtiCapabilities *prohibited,
                                                         jvmtiCapabilities *result) {

  {- -------------------------------------------
  (1) always_capabilities をベースとして, まず prohibited なものを除外する.
      ---------------------------------------- -}

      // exclude prohibited capabilities, must be before adding current
      exclude(&always_capabilities, prohibited, result);

  {- -------------------------------------------
  (1) 次に, 現在保持している権限を加える.
      ---------------------------------------- -}

      // must include current since it may possess solo capabilities and now prohibited
      either(result, current, result);

  {- -------------------------------------------
  (1) 次に, always_solo でまだ残っているものも加える.
      ---------------------------------------- -}

      // add other remaining
      either(result, &always_solo_remaining_capabilities, result);

  {- -------------------------------------------
  (1) もし OnLoad phase であれば, さらに onload_capabilities と onload_solo_remaining_capabilities を加える.
      ---------------------------------------- -}

      // if this is during OnLoad more capabilities are available
      if (JvmtiEnv::get_phase() == JVMTI_PHASE_ONLOAD) {
        either(result, &onload_capabilities, result);
        either(result, &onload_solo_remaining_capabilities, result);
      }
    }