Flink Elasticsearch异常处理程序代码未编译

Question

尝试按照Flink文档（https://ci.apache.org/projects/flink/flink-docs-stable/dev/connectors/elasticsearch.html）中给出的示例向Flink Elasticsearch接收器添加异常处理程序。

为Scala提供的示例代码比Scala具有更多的Java语言，请复制粘贴到此处：

val input: DataStream[String] = ...

input.addSink(new ElasticsearchSink(
    config, transportAddresses,
    new ElasticsearchSinkFunction[String] {...},
    new ActionRequestFailureHandler {
        @throws(classOf[Throwable])
        override def onFailure(ActionRequest action,
                Throwable failure,
                int restStatusCode,
                RequestIndexer indexer) {

            if (ExceptionUtils.containsThrowable(failure, 
EsRejectedExecutionException.class)) {
                // full queue; re-add document for indexing
                indexer.add(action)
            } else if (ExceptionUtils.containsThrowable(failure, 
ElasticsearchParseException.class)) {
                // malformed document; simply drop request without failing 
sink
            } else {
                // for all other failures, fail the sink
                // here the failure is simply rethrown, but users can also 
choose to throw custom exceptions
                throw failure
            }
        }  
}))

这是我的版本：

import org.apache.flink.util.{Collector, ExceptionUtils}
import org.elasticsearch.common.util.concurrent.EsRejectedExecutionException

  // create elastic search sink
  val esSinkBuilder = new ElasticsearchSink.Builder[DataStream](
    httpHosts,
    new ESSinkFunctionDataAggr(aggr_key, es_index, es_mapping),
    new ActionRequestFailureHandler {
      @throws(classOf[Throwable])
      override def onFailure(action: ActionRequest,
                             failure: Throwable,
                             restStatusCode: Int,
                             indexer: RequestIndexer) {

        if (ExceptionUtils.containsThrowable(failure, classOf[EsRejectedExecutionException])) {
          // full queue; re-add document for indexing
          indexer.add(action)
        } else if (ExceptionUtils.containsThrowable(failure, classOf[ElasticsearchParseException])) {
          // malformed document; simply drop request without failing sink
        } else {
          // for all other failures, fail the sink
          // here the failure is simply rethrown, but users can also choose to throw custom exceptions
          throw failure
        }
      }
    }
  )

该代码无法编译，IntelliJ用“无法解析符号containsThrowable” 的错误将其涂红。不确定如何解决此问题。我已经看到了另一个示例（Flink - ElasticSearch Sink - error handling），该示例使用findThrowableWithMessage而不是containsThrowable，但是就我的情况而言，我想按Flink文档中的说明处理异常。