@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      command_ =
          com.google.protobuf.LazyStringArrayList.emptyList();
      workingDir_ = "";
      inFile_ = "";
      outFile_ = "";
      errFile_ = "";
      redirectErrorStream_ = false;
      internalGetMutableEnviron().clear();
      return this;
    }
@java.lang.Override
    public Builder clear()