I'm trying to integrate Hystrix into my current spring-cloud & Netflix OSS microservice project.
I have a fresh Spring Boot version 1.4.0.RELEASE project with two dependencies:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-amqp</artifactId>
</dependency>
On project startup I receive this exception:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bindingService' defined in class path resource [org/springframework/cloud/stream/config/ChannelBindingServiceConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.stream.binding.ChannelBindingService]: Factory method 'bindingService' threw exception; nested exception is java.lang.NoClassDefFoundError: javax/validation/Validator
This exception only occurs when both the Eureka & Bus AMQP dependencies are together.
There is no configuration set in application or bootstrap .yml/.properties.
The only Java class present is the one generated by Spring Boot:
@SpringBootApplication
public class DummyProjectApplication {
public static void main(String[] args) {
SpringApplication.run(DummyProjectApplication.class, args);
}
}
Full 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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.dummy</groupId>
<artifactId>dummy_project</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>dummy_project</name>
<description>dummy_project</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-amqp</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Brixton.SR4</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>
Full Stack Trace:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bindingService' defined in class path resource [org/springframework/cloud/stream/config/ChannelBindingServiceConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.stream.binding.ChannelBindingService]: Factory method 'bindingService' threw exception; nested exception is java.lang.NoClassDefFoundError: javax/validation/Validator
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1123) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1018) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:776) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at com.dummy.DummyProjectApplication.main(DummyProjectApplication.java:10) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.stream.binding.ChannelBindingService]: Factory method 'bindingService' threw exception; nested exception is java.lang.NoClassDefFoundError: javax/validation/Validator
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
... 18 common frames omitted
Caused by: java.lang.NoClassDefFoundError: javax/validation/Validator
at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_73]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[na:1.8.0_73]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[na:1.8.0_73]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[na:1.8.0_73]
at java.net.URLClassLoader.access$100(Unknown Source) ~[na:1.8.0_73]
at java.net.URLClassLoader$1.run(Unknown Source) ~[na:1.8.0_73]
at java.net.URLClassLoader$1.run(Unknown Source) ~[na:1.8.0_73]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_73]
at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_73]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_73]
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[na:1.8.0_73]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_73]
at org.springframework.cloud.stream.binding.ChannelBindingService.<init>(ChannelBindingService.java:71) ~[spring-cloud-stream-1.0.2.RELEASE.jar:1.0.2.RELEASE]
at org.springframework.cloud.stream.config.ChannelBindingServiceConfiguration.bindingService(ChannelBindingServiceConfiguration.java:105) ~[spring-cloud-stream-1.0.2.RELEASE.jar:1.0.2.RELEASE]
at org.springframework.cloud.stream.config.ChannelBindingServiceConfiguration$$EnhancerBySpringCGLIB$$dcfa32f2.CGLIB$bindingService$1(<generated>) ~[spring-cloud-stream-1.0.2.RELEASE.jar:1.0.2.RELEASE]
at org.springframework.cloud.stream.config.ChannelBindingServiceConfiguration$$EnhancerBySpringCGLIB$$dcfa32f2$$FastClassBySpringCGLIB$$641fb65d.invoke(<generated>) ~[spring-cloud-stream-1.0.2.RELEASE.jar:1.0.2.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.cloud.stream.config.ChannelBindingServiceConfiguration$$EnhancerBySpringCGLIB$$dcfa32f2.bindingService(<generated>) ~[spring-cloud-stream-1.0.2.RELEASE.jar:1.0.2.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_73]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_73]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_73]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_73]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
... 19 common frames omitted
Caused by: java.lang.ClassNotFoundException: javax.validation.Validator
at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_73]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_73]
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[na:1.8.0_73]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_73]
... 43 common frames omitted
Picked up _JAVA_OPTIONS: -Djava.net.preferIPv4Stack=true
I think java.lang.NoClassDefFoundError: javax/validation/Validator should be a clue. That class is not included in the two (rather odd looking) dependencies. We could sit and discuss whether it should be included, or you could just include it yourself (e.g. via spring-boot-starter-web, which is the usual source, or spring-boot-starter-validation if you don't need web stuff).