Discussion on finding a working solution for Spring Data and Elasticsearch 5.x.x and 6.x.x

[FlatsWire-Niko]

Hello,

Sorry to bother you by making an issue. I don't know how to contact you in Github. Have you found any solution on this ES issue ?

I'm facing the same and I spent 2h searching the Internet for a solution. Without success. So I've switched back to 2.0.4 which work well. I'm trying to setup a project with version 5.5.0 of ES.

I've tried any combinaisons of version without success...

Kind regards, Nicolas

[CGavrila]

Hi Nicolas!

No problem with you contacting me.

Unfortunately, I could not find any solution. After spending many days on this, I decided it's just not worth it and did the same thing as you, which is switching back to 2.x.x. Not sure where you found this repo, but I created it as part of this topic in the ES forum - https://discuss.elastic.co/t/errors-when-using-spring-data-elasticsearch-version-3-0-0-build-snapshot-and-elasticsearch-5-4-0/90525. Maybe there's something there that can help you.

Good luck!

[FlatsWire-Niko]

Hi Cristian,

Thanks a lot for your feedback. I’ve found your repo from the link you pasted in your email. If I find something later I’ll drop you an email!

Thanks again and good luck! Nicolas

Le 31 août 2017 à 17:42, Cristian Gavrila notifications@github.com a écrit :

Hi Nicolas!

No problem with you contacting me.

Unfortunately, I could not find any solution. After spending many days on this, I decided it's just not worth it and did the same thing as you, which is switching back to 2.0.4. Not sure where you found this repo, but I created it as part of this topic in the ES forum - https://discuss.elastic.co/t/errors-when-using-spring-data-elasticsearch-version-3-0-0-build-snapshot-and-elasticsearch-5-4-0/90525 https://discuss.elastic.co/t/errors-when-using-spring-data-elasticsearch-version-3-0-0-build-snapshot-and-elasticsearch-5-4-0/90525. Maybe there's something there that can help you.

Good luck!

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[rfanjul]

I also have the same issue - No solution for the moment

[CGavrila]

Thanks @rfanjul for the comment. Just saw it, sorry!

I have recently tried again and I didn't get anywhere.

@rfanjul @FlatsWire-Niko I have also opened this issue in their official Jira board - https://jira.spring.io/browse/DATAES-364. There has been no reply, but if more people report/flag this in some way, maybe there's a chance.

[mansoor67890]

Try excluding ElasticsearchDataAutoConfiguration. i.e. @SpringBootApplication(exclude=ElasticsearchDataAutoConfiguration.class). I did this, now my project is working.

[CGavrila]

Thanks for the suggestion @mansoor67890, will try and leave a comment here.

[CGavrila]

@mansoor67890 Again, thanks for the suggestion!

I tried that, but I need to replace the stuff in ElasticsearchDataAutoConfiguration.class with other @Beans. Did you do that manually?

[mansoor67890]

No, @CGavrila I did this only: @springbootapplication(exclude=ElasticsearchDataAutoConfiguration.class).

[CGavrila]

@mansoor67890 I tried that too, but then Spring immediately complained about elasticsearchTemplate missing, so there must be something else in your case that creates the elasticsearchTemplate @Bean and anything else that is missing.

[CGavrila]

Ping @FlatsWire-Niko @rfanjul

I managed to get it working with Elasticsearch 5.5.3. I've tried with the new 6.0.0, but wasn't able to get it working.

My pom.xml file looks a bit like:

         <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.M6</version> <======================= (latest version)
        <relativePath/>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <elasticsearch.version>5.5.0</elasticsearch.version> <=======================
    </properties>

    <dependencies>

        <!-- Spring -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>  <======================= (no version in here)
               .......
    </dependencies> 

I also run my ES via Docker compose:

version: '2'
services:
  elasticsearch1:
    image: docker.elastic.co/elasticsearch/elasticsearch:5.5.3
    container_name: elasticsearch
    environment:
      - cluster.name=local
      - discovery.type=single-node
      - xpack.security.enabled=false
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    mem_limit: 1g
    ports:
      - 9200:9200
      - 9300:9300

Hope this helps someone else.

[mansoor67890]

Yes for elasticsearchTemplate. @Bean public ElasticsearchTemplate elasticsearchTemplate() { return new ElasticsearchTemplate(client()); }

I am doing this in my pom:

<dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-elasticsearch</artifactId>
        <version>${spring-data-elastic-version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.data</groupId>
                <artifactId>spring-data-elasticsearch</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

and

<spring-data-elastic-version>3.0.1.RELEASE</spring-data-elastic-version>
<elasticsearch.version>5.5.0</elasticsearch.version>

[rfanjul]

Hi all, I will also try this solution I will post here soon ! Thanks!

[FlatsWire-Niko]

Hi All,

Thanks @CGavrila for your posts. It was really useful ! I've been able to make things working. Here my stack: a docker image ES 5.6.5 with a spring data 3.0.2.RELEASE application (via spring boot 2.0.0.M7).

Docker command:

docker run --name es5 -e "xpack.security.enabled=false" -e "cluster.name=es5" -e "discovery.type=single-node" -p 9200:9200 -p 9300:9300  docker.elastic.co/elasticsearch/elasticsearch:5.6.5

In my pom:

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.M7</version>
        <relativePath></relativePath>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
    </properties>
       ...
        <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-elasticsearch</artifactId>
    </dependency>
       ...

My ES template:

    @Bean
    public ElasticsearchOperations elasticsearchTemplate() throws Exception {
        Settings settings = Settings.builder().put("cluster.name", "es5").build();
        TransportClient client = new PreBuiltTransportClient(settings)
                .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("0.0.0.0"), 9300));

        return new ElasticsearchTemplate(client);
    }

My contact at elastic told me it is not yet possible to use spring data with ES 6.0.

[CGavrila]

Thank you for sharing, Nicolas. Hopefully, this will help others too.

[rfanjul]

Hello ,

I was fighting a little bit with it for for me still I am stack with the last solution, the exception I got is:

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.elasticsearch.client.Client]: Factory method 'elasticsearchClient' threw exception; nested exception is java.lang.NoSuchMethodError: org.elasticsearch.common.settings.Settings.settingsBuilder()Lorg/elasticsearch/common/settings/Settings$Builder; at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:587) ... 37 more

for other side I also need xpack.security=true, here example of my pom:

` <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

<groupId>example</groupId>
<artifactId>example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>example</name>
<description>example</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.0.M1</version>
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.8</java.version>
    <maven.test.skip>true</maven.test.skip>
    <elasticsearch.version>5.6.0</elasticsearch.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.session</groupId>
        <artifactId>spring-session</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
        <version>1.4.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-maven-plugin -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <version>2.0.0.M1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <scope>runtime</scope>
    </dependency>
    <!-- testing -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>4.3.9.RELEASE</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-test</artifactId>
        <version>4.0.4.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <version>1.4.193</version>
        <scope>test</scope>
    </dependency>

    <!-- mail -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
        <version>1.5.6.RELEASE</version>
    </dependency>

    <!-- template system -->
    <dependency>
        <groupId>org.freemarker</groupId>
        <artifactId>freemarker</artifactId>
        <version>2.3.23</version>
    </dependency>

    <!-- -->
    <dependency>
        <groupId>commons-codec</groupId>
        <artifactId>commons-codec</artifactId>
        <version>1.9</version>
    </dependency>

    <!-- data -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.6</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>5.3.4.Final</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
        <version>1.5.7.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.hsqldb</groupId>
        <artifactId>hsqldb</artifactId>
        <scope>runtime</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
    <dependency>
        <groupId>com.google.guava</groupId>
        <artifactId>guava</artifactId>
        <version>23.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.google.collections/google-collections -->
    <dependency>
        <groupId>com.google.collections</groupId>
        <artifactId>google-collections</artifactId>
        <version>1.0</version>
    </dependency>

    <!-- ElasticSearch -->
    <!-- <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-elasticsearch</artifactId>
        <version>3.0.0.M4</version>
    </dependency>
    <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>transport</artifactId>
        <version>5.0.0</version>
    </dependency> -->

    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-elasticsearch</artifactId>
    </dependency>

    <!--<dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>transport</artifactId>
        <version>5.6.0</version>
    </dependency>

    <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>x-pack-transport</artifactId>
        <version>5.6.0</version>
    </dependency>-->
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>2.9.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.reflections/reflections -->
    <dependency>
        <groupId>org.reflections</groupId>
        <artifactId>reflections</artifactId>
        <version>0.9.10</version>
    </dependency>

    <!-- token -->
    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt</artifactId>
        <version>0.7.0</version>
    </dependency>
    <dependency>
        <groupId>org.bouncycastle</groupId>
        <artifactId>bcprov-jdk15on</artifactId>
        <version>1.52</version>
    </dependency>

    <!-- documentation -->
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <version>2.6.1</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>2.6.1</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>org.eclipse.jgit</groupId>
        <artifactId>org.eclipse.jgit</artifactId>
        <version>3.2.0.201312181205-r</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk-s3 -->
    <dependency>
        <groupId>com.amazonaws</groupId>
        <artifactId>aws-java-sdk-s3</artifactId>
        <version>1.11.220</version>
    </dependency>

    <!-- excel -->
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>3.17</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi</artifactId>
        <version>3.17</version>
    </dependency>

</dependencies>
<build>
    <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven-compiler-plugin.version}</version>
                <configuration>
                    <compilerArgument>-parameters</compilerArgument>
                    <testCompilerArgument>-parameters</testCompilerArgument>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>exec-maven-plugin</artifactId>
            <version>1.6.0</version>
            <executions>
                <execution>
                    <goals>
                        <goal>java</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <mainClass>dealini.commands.GenerateModelsCommands</mainClass>
                <arguments>
                    <argument>-parameters</argument>
                </arguments>
            </configuration>
        </plugin>
        <plugin>
            <artifactId>maven-antrun-plugin</artifactId>
            <configuration>
                <tasks>
                    <copy tofile="${basedir}/target/Dockerfile"
                          file="${basedir}/../docker-elk/system/Dockerfile"/>
                </tasks>
            </configuration>
            <executions>
                <execution>
                    <phase>install</phase>
                    <goals>
                        <goal>run</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>com.spotify</groupId>
            <artifactId>docker-maven-plugin</artifactId>
            <version>1.0.0</version>
            <configuration>
                <imageName>statistics</imageName>
                <dockerDirectory>${basedir}/target/</dockerDirectory>
            </configuration>
        </plugin>
    </plugins>
</build>

<pluginRepositories>
    <pluginRepository>
        <id>repository.spring.release</id>
        <name>Spring GA Repository</name>
        <url>https://repo.spring.io/plugins-release/</url>
    </pluginRepository>
</pluginRepositories>

<repositories>
    <repository>
        <id>repository.spring.milestone</id>
        <name>Spring Milestone Repository</name>
        <url>https://repo.spring.io/milestone</url>
    </repository>
    <repository>
        <id>elasticsearch-releases</id>
        <url>https://artifacts.elastic.co/maven</url>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>org.jboss.repository.releases</id>
        <name>JBoss Maven Release Repository</name>
        <url>https://repository.jboss.org/nexus/content/repositories/releases</url>
    </repository>
</repositories>

`

[nammmm]

@FlatsWire-Niko @CGavrila @mansoor67890 Hi, I am also trying to get this to work on localhost but have failed to do so. I am using 2.0.0.M7 for spring boot, 3.0.2-RELEASE for spring-data-elasticsearch, and 5.5.3 for elasticsearch.

Here is my dependency tree for elasticsearch

[INFO] +- org.springframework.data:spring-data-elasticsearch:jar:3.0.2.RELEASE:compile
[INFO] |  +- org.elasticsearch:elasticsearch:jar:5.5.3:compile
[INFO] |  |  +- org.elasticsearch:securesm:jar:1.1:compile
[INFO] |  |  \- org.elasticsearch:jna:jar:4.4.0:compile
[INFO] |  +- org.elasticsearch.client:transport:jar:5.5.3:compile
[INFO] |  |  +- org.elasticsearch.plugin:transport-netty3-client:jar:5.5.3:compile
[INFO] |  |  +- org.elasticsearch.plugin:reindex-client:jar:5.5.3:compile
[INFO] |  |  |  \- org.elasticsearch.client:rest:jar:5.5.3:compile
[INFO] |  |  +- org.elasticsearch.plugin:lang-mustache-client:jar:5.5.3:compile
[INFO] |  |  +- org.elasticsearch.plugin:percolator-client:jar:5.5.3:compile
[INFO] |  |  \- org.elasticsearch.plugin:parent-join-client:jar:5.5.3:compile
[INFO] |  \- org.elasticsearch.plugin:transport-netty4-client:jar:5.5.3:compile

and my ElasticsearchConfig looks like this

@Configuration
@EnableElasticsearchRepositories( basePackageClasses = com.xxx.search.repository.NoOp.class )
@Profile( "!test" )
public class ElasticsearchConfig
{
    @Value( "${spring.data.elasticsearch.cluster-nodes}" )
    private String clusterNodes;

    @Value( "${spring.data.elasticsearch.cluster-name}" )
    private String clusterName;

    @Bean
    public ElasticsearchOperations elasticsearchTemplate() throws Exception {
        Settings settings = Settings.builder().put("cluster.name", clusterName).build();
        TransportClient client = new PreBuiltTransportClient(settings)
                .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));

        return new ElasticsearchTemplate(client);
    }
}

but when I hit run, I got errors like this:

...
aused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.elasticsearch.client.transport.TransportClient]: Factory method 'elasticsearchClient' threw exception; nested exception is java.lang.NoSuchMethodError: org.elasticsearch.client.transport.TransportClient.builder()Lorg/elasticsearch/client/transport/TransportClient$Builder;
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579)
    ... 68 common frames omitted
Caused by: java.lang.NoSuchMethodError: org.elasticsearch.client.transport.TransportClient.builder()Lorg/elasticsearch/client/transport/TransportClient$Builder;
    at org.springframework.data.elasticsearch.client.TransportClientFactoryBean.buildClient(TransportClientFactoryBean.java:89)
    at org.springframework.data.elasticsearch.client.TransportClientFactoryBean.afterPropertiesSet(TransportClientFactoryBean.java:85)
    at org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchAutoConfiguration.elasticsearchClient(ElasticsearchAutoConfiguration.java:59)
    at org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchAutoConfiguration$$EnhancerBySpringCGLIB$$c145b8bd.CGLIB$elasticsearchClient$0(<generated>)
    at org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchAutoConfiguration$$EnhancerBySpringCGLIB$$c145b8bd$$FastClassBySpringCGLIB$$d05a5aad.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361)
    at org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchAutoConfiguration$$EnhancerBySpringCGLIB$$c145b8bd.elasticsearchClient(<generated>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
    ... 69 common frames omitted

Do you guys have any clue why it isn't running successfully? Thank you!

[julillosamaral]

Hey guys, where you able to solve this issue? I'm facing the exact same problem and I can't find a workaround!

Thanks, Julio

[CGavrila]

@julillosamaral @nammmm @rfanjul

Sorry, I missed all the comments until now.

Have you tried what me and @FlatsWire-Niko have written a couple of comments above? We both seem to have found solutions, albeit sort of specific ones.

[julillosamaral]

@CGavrila Ok, I was using gradle instead of maven. The thing is that even though I use the same dependencies gradle resolves them differently and that's the issue.

After I update my gradle with the correct dependencies I'll add it here.

Thanks for your help!

[sathishece170]

@FlatsWire-Niko Can you please share the sample working code with dependencies ?

[FlatsWire-Niko]

Hi @CGavrila, @sathishece170, @nammmm

I'll try to add a quick project on GitHub soon and I come back to you quickly.

[rfanjul]

hello - sorry for the delay ... for me is already working with 2.0.0.M7 :) 👍

[sathishece170]

@rfanjul - Can you share the dependencies with versions ?

[rfanjul]

Sorry for the delay @sathishece170 in my pom I added:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>...</groupId>
    <artifactId>...</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>...</name>
    <description>...</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.M7</version>
    </parent>

    <properties>
        <java.version>1.8</java.version>
        <maven.test.skip>false</maven.test.skip>
        <elasticsearch.version>5.6.0</elasticsearch.version>
        <spring>2.0.0.M7</spring>
    </properties>

   <dependencies>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session</artifactId>
            <version>2.0.0.M2</version>
        </dependency>

        <!-- data -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.3.4.Final</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
            <version>2.0.0.M2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>2.0.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-elasticsearch</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.elasticsearch.client</groupId>
                    <artifactId>transport</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>x-pack-transport</artifactId>
            <version>5.6.0</version>
        </dependency>

        ..... 

And as I said I need XPackTransport so I also created this template:

@Configuration
@EnableElasticsearchRepositories(basePackages = "example.repositories.elasticsearch")
public class ElasticSearchConfig {

    @Value("${spring.elasticsearch.cluster_name}")
    private String clusterName;

    @Value("${spring.elasticsearch.user}")
    private String user;

    @Value("${spring.elasticsearch.password}")
    private String password;

    @Value("${spring.elasticsearch.host}")
    private String host;

    @Bean
    public ElasticsearchOperations elasticsearchTemplate() throws Exception {

        System.setProperty("es.set.netty.runtime.available.processors", "false");

        Settings settings = Settings.builder()
                .put("cluster.name", clusterName )
                .put("xpack.security.user", user + ":" + password )
                .build();

        TransportClient client = new PreBuiltXPackTransportClient(settings)
                .addTransportAddress( new InetSocketTransportAddress(new InetSocketAddress(host, 9300)) );

        return new ElasticsearchTemplate(client);
    }
}

Let me know if it works for you