public Builder mergeLastModificationTime(com.google.protobuf.Timestamp value) {
        if (lastModificationTimeBuilder_ == null) {
          if (((bitField0_ & 0x00001000) != 0)
              && lastModificationTime_ != null
              && lastModificationTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
            getLastModificationTimeBuilder().mergeFrom(value);
          } else {
            lastModificationTime_ = value;
          }
        } else {
          lastModificationTimeBuilder_.mergeFrom(value);
        }
        if (lastModificationTime_ != null) {
          bitField0_ |= 0x00001000;
          onChanged();
        }
        return this;
      }
<pre>
Output only. The time that the transfer job was last modified.
</pre>

<code>
.google.protobuf.Timestamp last_modification_time = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java