I created a new spring boot project using Spring Tools 3 add on in Eclipse. When I am trying to run the basic application, it is throwing a ClassNotFoundExcecption.
I am trying to use this Application as a Spring Cloud Config Server. Initially it showed ClassNotFoundException for TextEncyptor class also then I added spring-security support which resolved it. But with this I am unable to figure out which dependency i am missing. I tried adding support for web, actuator but nothing worked. Is it a versioning issue? If so, how can I resolve it? Moreover this is an auto-generated project.
Here's 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
http://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>2.1.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.microservices</groupId>
<artifactId>spring-cloud-config-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spring-cloud-config-server</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.RC2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</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-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
</repositories>
</project>
Here's the StackTrace:
java.lang.ClassCastException: java.lang.ClassNotFoundException cannot be cast to [Ljava.lang.Object;
at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.lambda$collectClasses$1(EnableConfigurationPropertiesImportSelector.java:83) ~[spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at java.util.stream.ReferencePipeline$7$1.accept(Unknown Source) ~[na:1.8.0_181]
at java.util.LinkedList$LLSpliterator.forEachRemaining(Unknown Source) ~[na:1.8.0_181]
at java.util.stream.AbstractPipeline.copyInto(Unknown Source) ~[na:1.8.0_181]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) ~[na:1.8.0_181]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source) ~[na:1.8.0_181]
at java.util.stream.AbstractPipeline.evaluate(Unknown Source) ~[na:1.8.0_181]
at java.util.stream.ReferencePipeline.collect(Unknown Source) ~[na:1.8.0_181]
at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.collectClasses(EnableConfigurationPropertiesImportSelector.java:85) ~[spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.getTypes(EnableConfigurationPropertiesImportSelector.java:78) ~[spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.registerBeanDefinitions(EnableConfigurationPropertiesImportSelector.java:70) ~[spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.lambda$loadBeanDefinitionsFromRegistrars$1(ConfigurationClassBeanDefinitionReader.java:364) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at java.util.LinkedHashMap.forEach(Unknown Source) ~[na:1.8.0_181]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsFromRegistrars(ConfigurationClassBeanDefinitionReader.java:363) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:145) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:327) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:691) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:528) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at com.microservices.springcloudconfigserver.SpringCloudConfigServerApplication.main(SpringCloudConfigServerApplication.java:10) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_181]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.1.1.RELEASE.jar:2.1.1.RELEASE]
Main class:
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringCloudConfigServerApplication {
public static void main(String[] args) {
SpringApplication.run(SpringCloudConfigServerApplication.class, args);
}
}
Based on other similar questions - it might be a maven cache issue. I would recommend to clear .m2 folder and try to build again.
See similar issue here: https://github.com/spring-io/initializr/issues/457
Another but without feedback: https://github.com/spring-projects/spring-boot/issues/12466
I was able to run the project locally with your pom.xml and your main class and basic configuration in application.yml.
Another recommendation - try to exclude IDE possible problems, try to run you project using
mvn spring-boot:run
Hope this helps.