cannot resolve constructor when invoke FlinkKafkaProducer011 constructor in scala

[远远]

invoke FlinkKafkaProducer011 constructor in scala:

val producer = new
FlinkKafkaProducer011[PVEvent.Entity](appConf.getPvEventTopic, new
PvEventSerializeSchema,
    producerProps, Optional.of(FlinkRebalancePartitioner[PVEvent.Entity]))

and the constructor is :

/**
 * Creates a FlinkKafkaProducer for a given topic. The sink produces
its input to
 * the topic. It accepts a keyed {@link KeyedSerializationSchema} and
possibly a custom {@link FlinkKafkaPartitioner}.
 *
 * <p>If a partitioner is not provided, written records will be
partitioned by the attached key of each
 * record (as determined by {@link
KeyedSerializationSchema#serializeKey(Object)}). If written records do
not
 * have a key (i.e., {@link
KeyedSerializationSchema#serializeKey(Object)} returns {@code null}),
they
 * will be distributed to Kafka partitions in a round-robin fashion.
 *
 * @param defaultTopicId The default topic to write data to
 * @param serializationSchema A serializable serialization schema for
turning user objects into a kafka-consumable byte[] supporting
key/value messages
 * @param producerConfig Configuration properties for the
KafkaProducer. 'bootstrap.servers.' is the only required argument.
 * @param customPartitioner A serializable partitioner for assigning
messages to Kafka partitions.
 *                          If a partitioner is not provided, records
will be partitioned by the key of each record
 *                          (determined by {@link
KeyedSerializationSchema#serializeKey(Object)}). If the keys
 *                          are {@code null}, then records will be
distributed to Kafka partitions in a
 *                          round-robin fashion.
 */
public FlinkKafkaProducer011(
      String defaultTopicId,
      KeyedSerializationSchema<IN> serializationSchema,
      Properties producerConfig,
      Optional<FlinkKafkaPartitioner<IN>> customPartitioner) {
   this(
      defaultTopicId,
      serializationSchema,
      producerConfig,
      customPartitioner,
      Semantic.AT_LEAST_ONCE,
      DEFAULT_KAFKA_PRODUCERS_POOL_SIZE);
}

but cannot complie pass, and IDEA show ''cannot resolve constructor" error.
and i invoke other constructor that without java8 Optional params， it  will
no
error。  because of java8 Optional param？what should i do？