Elasticsearch 8.3 configuration in Spring Boot

Elasticsearch 8.3 configuration in Spring Boot - java

I have been trying to implement Elastic Search 8.3 with spring boot.
i am getting the below exception:
Cannot convert value of type 'co.elastic.clients.elasticsearch.ElasticsearchClient' to required type 'org.springframework.data.elasticsearch.core.ElasticsearchOperations'
Below is my configuration for elastic search:
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder.HttpClientConfigCallback;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;
import co.elastic.clients.elasticsearch.ElasticsearchClient;
import co.elastic.clients.json.jackson.JacksonJsonpMapper;
import co.elastic.clients.transport.ElasticsearchTransport;
import co.elastic.clients.transport.rest_client.RestClientTransport;
#Configuration
#EnableElasticsearchRepositories
public class ElasticConfig {
#Bean
public RestClient client() {
final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials("elastic", "test321"));
HttpHost host = new HttpHost("localhost", 9200);
RestClient restClient = RestClient.builder(host)
.setHttpClientConfigCallback(new HttpClientConfigCallback() {
#Override
public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
// TODO Auto-generated method stub
httpClientBuilder.disableAuthCaching();
return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
}
}).build();
return restClient;
}
#Bean
public ElasticsearchClient elasticsearchTemplate() {
ElasticsearchTransport transport = new RestClientTransport(client(), new JacksonJsonpMapper());
return new ElasticsearchClient(transport);
}
}
Below is 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.2</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>aisha</groupId>
<artifactId>courseapp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>courseapp</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>17</java.version>
<guava.version>20.0</guava.version>
<geoip2.version>2.15.0</geoip2.version>
<uap-java.version>1.4.0</uap-java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-suite</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>com.maxmind.geoip2</groupId>
<artifactId>geoip2</artifactId>
<version>${geoip2.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</dependency>
<dependency>
<groupId>com.github.ua-parser</groupId>
<artifactId>uap-java</artifactId>
<version>${uap-java.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-elasticsearch</artifactId>
</dependency>
<dependency>
<groupId>co.elastic.clients</groupId>
<artifactId>elasticsearch-java</artifactId>
<version>8.3.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<dependency>
<groupId>jakarta.json</groupId>
<artifactId>jakarta.json-api</artifactId>
<version>2.0.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.github.javafaker/javafaker -->
<dependency>
<groupId>com.github.javafaker</groupId>
<artifactId>javafaker</artifactId>
<version>1.0.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Below is test class which call simple query for index product :
#SpringBootTest
public class ElkSpringTest {
#Autowired
private ElasticsearchRestTemplate elasticConfig;
#Test
void contextLoads() {
SearchResponse<ELKProduct> search;
try {
search = elasticConfig.search(s -> s.index("product").size(10), ELKProduct.class);
System.out.println(search.hits().total().value());
for (Hit<ELKProduct> hit : search.hits().hits()) {
System.out.println(hit.source().getId());
}
System.out.println("******ENding *****");
} catch (ElasticsearchException | IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Since elastic is upgraded to latest version 8.3. I am not able to set up elastic search in spring boot. I usually work with ElasticSearch repository to store the data in my indexs and query it using ElasticsearchOperations.

Current spring-data-elasticsearch(version 4.4) not much compatible with es version 8.3 (>7.17.6).
ES RestHighLevelClient can setApiCompatibilityMode(true) to enables compatibility mode that allows HLRC 7.17 to work with Elasticsearch 8.x. But the compatibility is not very good.

spring-data-elasticsearch(version 5.0) is now compatible with ES 8.5.0
It looks like the RestHighLevelClient is deprecated as of this version.
Check this documentation for implementing the client configuration.

Related

Swagger Giving 404 Error in Java while calling Swagger

I am fairly new to Java and I am Getting 404 in Java in Swagger as shown Below. The Screenshot is attached Below. Please comment if you require anything else. I added a swaggerConfig.java file where I posted the Below Code. Basically I need to operate a Swagger UI to test my APIs. Please help me regarding this
Click for Screen Shot
Below is the SwaggerConfig.java
package com.jsqwerty.be.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
#Configuration
public class SwaggerConfig {
#Bean
public Docket api() {
return new Docket(DocumentationType.SWAGGER_2)
.select()
.apis(RequestHandlerSelectors.any())
.paths(PathSelectors.any())
.build();
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("API")
.description("Service API")
.termsOfServiceUrl("http://springfox.io")
.contact(new Contact("springfox", "", ""))
.license("Apache License Version 2.0")
.licenseUrl("https://github.com/springfox/springfox/blob/master/LICENSE")
.version("2.0")
.build();
}
}
Below is the Code for pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.0.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.jsqwerty</groupId>
<artifactId>be</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>be</name>
<description>Learning Platform</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>3.0.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-boot-starter</artifactId>
<version>3.0.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
I am using url -> http://localhost:8080/be/swagger-ui.html

Spring Boot Integration Testing error with Junit5 and h2 “java.lang.IllegalStateException: Failed to load ApplicationContext”

I have been trying to run this integration test, but I keep getting this error message saying that java.lang.IllegalStateException: Failed to load ApplicationContextat
org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:98)
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:124)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:118)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)
at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:43)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:248)
And I’m not exactly sure why this is happening in terms of how I set up the file. If anyone knows the reason let me know pls.
this is the file inside src/test/java/com/flexcar.task_manager
package com.flexcar.task_manager;
import static org.junit.jupiter.api.Assertions.assertEquals;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.flexcar.task_manager.task.Task;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.web.server.LocalServerPort;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.context.WebApplicationContext;
#SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class TaskControllerIntegrationTest {
#LocalServerPort
private int port;
private String baseUrl = "http://localhost";
#Autowired
private WebApplicationContext webApplicationContext;
private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
private static RestTemplate restTemplate;
#Autowired
private TestH2Repository h2Repository;
#BeforeAll
public static void init() {
restTemplate = new RestTemplate();
}
#BeforeEach
public void setUp() {
baseUrl = baseUrl.concat(":").concat(port + "").concat("/api/v1");
}
#Test
public void postTaskCheck() throws Exception {
Task first = new Task(2L, System.currentTimeMillis(), "car break", "Pls finish ASAP", "A", "B", "C", "D", "E", 1234567891011L, false, "H", true);
// String postValue = OBJECT_MAPPER.writeValueAsString(first);
// MvcResult result = mockMvc.perform(post("/api/v1/newtask")
// .contentType(MediaType.APPLICATION_JSON)
// .content(postValue))
// .andExpect(status().isCreated())
// .andDo(print())
// .andReturn();
// return OBJECT_MAPPER.readValue(result.getResponse().getContentAsString(), Task.class);
Task response = restTemplate.postForObject(baseUrl.concat("newtask"), first, Task.class);
assertEquals("car break", response.getType());
assertEquals(4, h2Repository.findAll().size());
}
}
this is the file for pom.xml
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.flexcar</groupId>
<artifactId>task_manager</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>task_manager</name>
<description>Provide a logic based task management solution for vehicle service team members at Flexcar.</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version> 5.6.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<version>3.2.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<version>2.5.0</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<!-- <plugin>-->
<!-- <artifactId>maven-surefire-plugin</artifactId>-->
<!-- <version>2.22.0</version>-->
<!-- </plugin>-->
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
</project>

Spring Cloud sleuth memory leak issue

I am facing issue with spring cloud sleuth as it is leaking memory as I have gone through the dumps of my applications:
What does 13.05mb (40.3%) of Java Static org.springframework.cloud.sleuth.instrument.async.SleuthContextListener.CACHE
Spring Cloud Version: Hoxton.SR8
Spring Boot Version: 2.3.3.RELEASE
Please find the heapdump report below:
https://heaphero.io/my-heap-report.jsp?p=YXJjaGl2ZWQvMjAyMS8wNS8yNS8tLWhlYXBkdW1wLTE2MjE5MjE0MzYyNTMuaHByb2YtNS00Ni0xLmpzb24=
pls find the code repo below, which I am using in my appplication, Also on first run there is no memory leakage issue but on successive runs it shows the memory leakage issue as mentioned in the heapdump report
package com.example.demo;
import java.util.Date;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
#SpringBootApplication
#EnableCaching
#EnableScheduling
public class DemoApplication {
Logger log = LoggerFactory.getLogger(DemoApplication.class);
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
#CacheEvict(cacheNames = { "config1", "config2" }, allEntries = true)
#Scheduled(fixedDelay = 60000 * 5)
public void cacheEvict() {
log.info("Evicting all cache at: {}", new Date());
}
}
pom.xml
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.demo</groupId>
<artifactId>demo-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo-service</name>
<description>demo</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk-ses -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-ses</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.mail/javax.mail-api -->
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.6.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.ht</groupId>
<artifactId>subscription-core-library</artifactId>
<version>0.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>subscription-core-library-stg</id>
<name>subscription-core-library-stg</name>
<url>${repo.url}</url>
</repository>
</repositories>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.SR4</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-dependencies</artifactId>
<version>2.1.6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
TIA

You have a complete mix of versions. Why do you say that you're using Hoxton and Boot 2.3 if you're not using Hoxton, you're using Greenwich and Boot 2.1
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.SR4</version>
<type>pom</type>
<scope>import</scope>
</dependency>
Please upgrade to the latest version of Sleuth and Boot. Please replicate this issue by going to start.spring.io and generating a new, fresh project.
Update:
With the 2020.0.3 release I've changed one class that used to cache a bean factory in such a way that now it stores a hash of that class.

Problem with GraphQL finding method on queryResolver

I'm working on a GraphQL java API project and i'm having problems with the Query not finding the methods in the Query.java (QueryResolver)
I can't see an error on this code but aparently it has one ':D
PS: I use java open JDK 11
the error: (full stacktrace on https://pastebin.com/cpVRpdsj)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.ServletRegistrationBean]: Factory method 'graphQLServlet' threw exception; nested exception is com.coxautodev.graphql.tools.FieldResolverError: No method or field found with any of the following signatures (with or without one of [interface graphql.schema.DataFetchingEnvironment] as the last argument), in priority order:
com.example.GraphQLRProject.core.Query.findAllPessoas()
com.example.GraphQLRProject.core.Query.getFindAllPessoas()
com.example.GraphQLRProject.core.Query.findAllPessoas
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
... 59 common frames omitted
my pom.xml
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.1.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>GraphQLRProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>GraphQLRProject</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
<!--<kotlin.version>1.3.10</kotlin.version> -->
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<!--
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
-->
<!--
<dependency>
<groupId>com.graphql-java-kickstart</groupId>
<artifactId>graphql-spring-boot-starter</artifactId>
<version>6.0.1</version>
</dependency>
-->
<dependency>
<groupId>com.graphql-java</groupId>
<artifactId>graphql-java-tools</artifactId>
<version>5.2.4</version>
</dependency>
<dependency>
<groupId>com.graphql-java</groupId>
<artifactId>graphql-java</artifactId>
<version>11.0</version>
</dependency>
<dependency>
<groupId>com.graphql-java</groupId>
<artifactId>graphql-java-servlet</artifactId>
<version>6.1.3</version>
</dependency>
<dependency>
<groupId>com.graphql-java</groupId>
<artifactId>graphiql-spring-boot-starter</artifactId>
<version>5.0.2</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.10.6</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
</dependency>
<!-- GraphQL end -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
my Query.java
package com.example.GraphQLRProject.core;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.coxautodev.graphql.tools.GraphQLQueryResolver;
import com.example.GraphQLRProject.model.Pessoa;
import com.example.GraphQLRProject.repository.PessoaRepository;
#Component
public class Query implements GraphQLQueryResolver {
#Autowired
PessoaRepository pessoaRepository;
List<Pessoa> findAllPessoas() {
return pessoaRepository.findAll();
}
}
my main application
package com.example.GraphQLRProject;
import java.util.TimeZone;
import javax.annotation.PostConstruct;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import com.coxautodev.graphql.tools.SchemaParser;
import com.example.GraphQLRProject.core.Mutation;
import com.example.GraphQLRProject.core.Query;
import com.example.GraphQLRProject.util.DateScalar;
import graphql.schema.GraphQLSchema;
import graphql.servlet.SimpleGraphQLHttpServlet;
#ComponentScan(basePackageClasses = GraphQlrProjectApplication.class)
#SpringBootApplication(scanBasePackages = "com.example")
#EntityScan("com.example")
#EnableJpaRepositories("com.example")
#SuppressWarnings({"rawtypes", "unchecked"})
public class GraphQlrProjectApplication {
public static void main(String[] args) {
SpringApplication.run(GraphQlrProjectApplication.class, args);
}
#PostConstruct
void started() {
TimeZone.setDefault(TimeZone.getTimeZone("America/Recife"));
}
#Bean
public ServletRegistrationBean graphQLServlet() {
return new ServletRegistrationBean(SimpleGraphQLHttpServlet.newBuilder(buildSchema()).build(), "/graphql");
}
private static GraphQLSchema buildSchema() {
return SchemaParser
.newParser()
.file("schema.graphqls")
.resolvers(new Query(), new Mutation())
.scalars(DateScalar.DATE)
.build()
.makeExecutableSchema();
}
}
and my schema.graphqls
schema {
query: Query
mutation: Mutation
}
type Query {
findAllPessoas: [Pessoa]
}
type Mutation {
savePessoa(novo: PessoaInput): Pessoa
}
type Pessoa {
id: ID!
nome: String!
cpf: String!
email: String!
}
input PessoaInput{
nome: String!
cpf: String!
email: String!
}

The problem was that the method was not public ...
big facepalm for me ':D

Java Spring - missing type SolrClient, MulticoreSolrServerFactory

I am trying to implement Solr into my Java Spring application, however I have troubles with dependencies, since STS cannot find SolrClient and MultiCoreSolrServerFactory. Here is the class that is causing me troubles:
package lt.gerasolutions.gsm.core.classifiers.domain;
import javax.annotation.Resource;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.impl.HttpSolrServer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.data.solr.core.SolrTemplate;
import org.springframework.data.solr.repository.SolrCrudRepository;
import org.springframework.data.solr.repository.config.EnableSolrRepositories;
import org.springframework.data.solr.server.support.HttpSolrClientFactoryBean;
#Configuration
#EnableSolrRepositories(basePackages={"lt.gerasolutions.gsm.core.solrRepositories"},
multicoreSupport=true)
public class SolrContext {
static final String SOLR_HOST = "solr.host";
#Resource
private Environment environment;
#Bean
public SolrServer solrServer() {
String solrHost = environment.getRequiredProperty(SOLR_HOST);
SolrServer server = new HttpSolrServer(solrHost);
MulticoreSolrServerFactory factory;
//I was told to use this factory to return a server, but eclipse cannot find it unfortunately.
}
#Bean (name = "EN")
public SolrTemplate solrEn(){
return new SolrTemplate(solrServer());
//The type org.apache.solr.client.solrj.SolrClient cannot be resolved. It is indirectly referenced from required .class files
}
#Bean (name = "LT")
public SolrTemplate solrLt(){
return new SolrTemplate(solrServer());
}
}
My dependencies are managed by maven, and this is its pom file:
<?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>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>a</name>
<description></description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-batch</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>
spring-boot-starter-data-elasticsearch
</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-solr</artifactId>
<version>2.0.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-core</artifactId>
<version>6.0.0</version>
<exclusions>
<exclusion>
<artifactId>jdk.tools</artifactId>
<groupId>jdk.tools</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-solr</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

Check the solrj jar version in dependencies.
Since spring boot is having a dependency of 4.10.4, new version doesnt get override. The old version does not have Cloud classes.
You can manually add
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-solrj</artifactId>
<version>5.5.1</version>
</dependency>
You will have new version then.

We Keep Coding

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Elasticsearch 8.3 configuration in Spring Boot - java

Current spring-data-elasticsearch(version 4.4) not much compatible with es version 8.3 (>7.17.6). ES RestHighLevelClient can setApiCompatibilityMode(true) to enables compatibility mode that allows HLRC 7.17 to work with Elasticsearch 8.x. But the compatibility is not very good.

spring-data-elasticsearch(version 5.0) is now compatible with ES 8.5.0 It looks like the RestHighLevelClient is deprecated as of this version. Check this documentation for implementing the client configuration.

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