public Builder mergeHttpTarget(com.google.cloud.tasks.v2beta3.HttpTarget value) {
      if (httpTargetBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && httpTarget_ != null
            && httpTarget_ != com.google.cloud.tasks.v2beta3.HttpTarget.getDefaultInstance()) {
          getHttpTargetBuilder().mergeFrom(value);
        } else {
          httpTarget_ = value;
        }
      } else {
        httpTargetBuilder_.mergeFrom(value);
      }
      if (httpTarget_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }
<pre>
Modifies HTTP target for HTTP tasks.
</pre>

<code>.google.cloud.tasks.v2beta3.HttpTarget http_target = 13;</code>
java-tasks/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Queue.java