尝试创建TransportClient时，Elasticsearch 5.1错误“ java.lang.NoSuchFieldError：LUCENE_5_4_1”

Question

I am trying to write a client for Elasticsearch 5.1, and am trying to use the TransportClient object, as documented here ( https://www.elastic.co/guide/en/elasticsearch/client/java-api/5.1/transport-client.html ).

To test this client, I have a simple get function that uses the Get API as documented on the ES site ( https://www.elastic.co/guide/en/elasticsearch/client/java-api/current/java-docs-get.html ).

However, my code does not even execute to my get function, but rather throws the error upon creation of a PreBuiltTransportClient object I create in the constructor of my client class. Below, is the snippet of code. The error gets thrown from that first line.

PreBuiltTransportClient preBuiltTransportClient = new PreBuiltTransportClient(Settings.EMPTY);
try{
    this.esClient = (TransportClient) preBuiltTransportClient.addTransportAddress(
            new InetSocketTransportAddress(InetAddress.getByName(esHost), esPort));
} catch (UnknownHostException ex) {
    LOGGER.error("Host cannot be reached: ", ex);
    preBuiltTransportClient.close();
    this.esClient.close();
}

Here is the way I am testing the client with the get API. The search values are from the elasticsearch github example ( https://github.com/elastic/elasticsearch ).

//for testing purposes
public void testGet(String index, String type, String id) {
    GetResponse response = esClient.prepareGet(index, type, id).get();
    System.out.println("testGet response: " + response);
}

public static void main(String[] args) {
    ESClient = new ESClient("localhost", 9200);
    String index = "twitter"; 
    String type = "tweet";
    String id = "kimchy";
    client.testGet(index, type, id);
}

Lastly, below is the full stack trace of the error:

Exception in thread "main" java.lang.NoSuchFieldError: LUCENE_5_4_1
at org.elasticsearch.Version.<clinit>(Version.java:57)
at org.elasticsearch.common.io.stream.StreamOutput.<init>(StreamOutput.java:74)
at org.elasticsearch.common.io.stream.BytesStreamOutput.<init>(BytesStreamOutput.java:60)
at org.elasticsearch.common.io.stream.BytesStreamOutput.<init>(BytesStreamOutput.java:57)
at org.elasticsearch.common.io.stream.BytesStreamOutput.<init>(BytesStreamOutput.java:47)
at org.elasticsearch.common.xcontent.XContentBuilder.builder(XContentBuilder.java:69)
at org.elasticsearch.common.settings.Setting.arrayToParsableString(Setting.java:726)
at org.elasticsearch.common.settings.Setting.lambda$listSetting$26(Setting.java:672)
at org.elasticsearch.common.settings.Setting$2.getRaw(Setting.java:676)
at org.elasticsearch.common.settings.Setting.lambda$listSetting$24(Setting.java:660)
at org.elasticsearch.common.settings.Setting.listSetting(Setting.java:665)
at org.elasticsearch.common.settings.Setting.listSetting(Setting.java:660)
at org.elasticsearch.common.network.NetworkService.<clinit>(NetworkService.java:50)
at org.elasticsearch.client.transport.TransportClient.newPluginService(TransportClient.java:91)
at org.elasticsearch.client.transport.TransportClient.buildTemplate(TransportClient.java:119)
at org.elasticsearch.client.transport.TransportClient.<init>(TransportClient.java:247)
at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:92)
at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:81)
at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:71)
at customclient.<init>(ESClient.java:43)
at customclient.main(ESClient.java:112)

I'm not sure what this error is caused by, or what I could be doing wrong, and would appreciate some help! Thanks!

Answer 1

Aren't you suppose to have the latest version of Lucene as per the ES blog blog which I've posted below?

Today we are pleased to announce the release of Elasticsearch 5.1.1, based on Lucene 6.3.0.

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