I am trying to build a springboot microservice application and i have service called eureka server which require zipkin to trace the logs.However when i add the dependencies with the latest,it gives the following error.
java.lang.IllegalArgumentException: Could not find class [org.springframework.cloud.client.loadbalancer.LoadBalancerEagerLoadProperties]
at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:333) ~[spring-core-6.0.3.jar:6.0.3]
at org.springframework.core.annotation.TypeMappedAnnotation.adapt(TypeMappedAnnotation.java:465) ~[spring-core-6.0.3.jar:6.0.3]
at org.springframework.core.annotation.TypeMappedAnnotation.getValue(TypeMappedAnnotation.java:390) ~[spring-core-6.0.3.jar:6.0.3]
at org.springframework.core.annotation.TypeMappedAnnotation.asMap(TypeMappedAnnotation.java:278) ~[spring-core-6.0.3.jar:6.0.3]
at org.springframework.core.annotation.AbstractMergedAnnotation.asAnnotationAttributes(AbstractMergedAnnotation.java:193) ~[spring-core-6.0.3.jar:6.0.3]
at org.springframework.core.type.AnnotatedTypeMetadata.getAnnotationAttributes(AnnotatedTypeMetadata.java:106) ~[spring-core-6.0.3.jar:6.0.3]
at org.springframework.core.type.AnnotatedTypeMetadata.getAnnotationAttributes(AnnotatedTypeMetadata.java:81) ~[spring-core-6.0.3.jar:6.0.3]
at org.springframework.context.annotation.AnnotationConfigUtils.attributesFor(AnnotationConfigUtils.java:301) ~[spring-context-6.0.3.jar:6.0.3]
My pom:
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<spring.boot.dependencies.version>3.0.1</spring.boot.dependencies.version>
<spring.cloud-version>2020.0.3</spring.cloud-version>
</properties>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>4.0.0</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
<version>3.1.6</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-sleuth-zipkin</artifactId>
<version>3.1.6</version>
</dependency>
</dependencies>
Properties.application:
spring.application.name=eureka-server
server.port=8761
eureka.client.fetch-registry=false
eureka.client.register-with-eureka=false
log.level.root=debug
spring.zipkin.base-url=http://localhost:9411
I search for the error and find there may be the problem on the version difference in one spring.cloud class and cause the error, however, when i use earlier version eureka dependencies, it cannot show the eureka homepage when browsing http://localhost:8761/.Neither the use of dependency management works
I see source 1.7 in your pom which is not supported anymore [![jdk7 support dates][1]][1] check for more details, If you open https://start.spring.io/ and add eureka server it generates pom below which uses java 17
<?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>3.0.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>17</java.version>
<spring-cloud.version>2022.0.1</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>netflix-candidates</id>
<name>Netflix Candidates</name>
<url>https://artifactory-oss.prod.netflix.net/artifactory/maven-oss-candidates</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
</project>
if you need to go below 17 you can use spring boot 2.7 which generates pom below
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.9</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2021.0.5</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
please use https://start.spring.io/ when creating a project. [1]: https://i.sstatic.net/yBlne.png
