public Builder mergeFrom(com.microsoft.reef.proto.DriverRuntimeProtocol.ResourceReleaseProto other) { if (other == com.microsoft.reef.proto.DriverRuntimeProtocol.ResourceReleaseProto.getDefaultInstance()) return this; if (other.hasIdentifier()) { bitField0_ |= 0x00000001; identifier_ = other.identifier_; onChanged(); } this.mergeUnknownFields(other.getUnknownFields()); return this; }