public Builder addAllSourceRoot(
              java.lang.Iterable<java.lang.String> values) {
            ensureSourceRootIsMutable();
            com.google.protobuf.AbstractMessageLite.Builder.addAll(
                values, sourceRoot_);
            bitField0_ |= 0x00000002;
            onChanged();
            return this;
          }
public Builder addAllSourceRoot(
              java.lang.Iterable<java.lang.String> values)