public Builder mergeAdditions(com.google.webrisk.v1beta1.ThreatEntryAdditions value) {
      if (additionsBuilder_ == null) {
        if (((bitField0_ & 0x00000002) != 0)
            && additions_ != null
            && additions_ != com.google.webrisk.v1beta1.ThreatEntryAdditions.getDefaultInstance()) {
          getAdditionsBuilder().mergeFrom(value);
        } else {
          additions_ = value;
        }
      } else {
        additionsBuilder_.mergeFrom(value);
      }
      if (additions_ != null) {
        bitField0_ |= 0x00000002;
        onChanged();
      }
      return this;
    }
<pre>
A set of entries to add to a local threat type's list.
</pre>

<code>.google.cloud.webrisk.v1beta1.ThreatEntryAdditions additions = 5;</code>
java-webrisk/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/ComputeThreatListDiffResponse.java