Java.lang.NoClassDefFoundError: org / springframework / core / DefaultParameterNameDiscoverer

Question

I am trying to work out spring hibernation with maven dependencies.

My server does not start and throws this error:

java.lang.NoClassDefFoundError: org/springframework/core/DefaultParameterNameDiscoverer 

I do not know if this is a problem for my dependencies or my server. Let me know if you need anything from my project. Here are the dependencies that I added in my pom.xml file. I am using maven 4.0.0.

 <properties> <spring.version>3.0.5.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- Spring 3 dependencies --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <!-- <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>3.2.3.RELEASE</version> </dependency> --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>4.0.6.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>4.3.5.Final</version> <type>jar</type> <scope>compile</scope> </dependency> <!-- Hibernate annotation --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-ehcache</artifactId> <version>4.3.5.Final</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.31</version> </dependency> </dependencies> <repositories> <repository> <id>abc</id> <url>http://repo1.maven.org/maven2</url> </repository> </repositories> 

Answer 1

It is not wise to mix Spring versions in one project.

Error: you have a spring -core module working with 3.0.5, and the rest of the modules with 4.0.6

Answer 2

The resolution of this problem will depend on your pom.xml and the spring library. Some rejig from spring banners, including and excluding java files in maven, will allow this.

 I added the following to resolve the mongo-db spring-data jar related issue. <properties> <spring.version>3.2.4.RELEASE</spring.version> <spring.data.version>1.6.1.RELEASE</spring.data.version> <spring.core.version>4.1.4.RELEASE</spring.core.version> </properties> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> </exclusion> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> </exclusion> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> </exclusion> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.core.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>org.mongodb</groupId> <artifactId>mongo-java-driver</artifactId> <version>${mongo.driver.version}</version> </dependency> <dependency> <groupId>org.jongo</groupId> <artifactId>jongo</artifactId> <version>1.1</version> </dependency> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-mongodb</artifactId> <version>${spring.data.version}</version> </dependency> 

Answer 3

As Manuel Jordan said, this is because of the difference in versions. I just got this error and solved it by installing the same version of org.springframework: spring -core in each of my modules.

My project structure is as follows:

 projectname module1 module2 module3 

I wrote a test in module2:

 projectname module1 module2 test <package>/TestClass.java module3 

When I ran this test, I got this error:

  java.lang.NoClassDefFoundError: org/springframework/core/ErrorCoded 

After ensuring that each module has the same version of the org.springframework: spring -core dependency , the test runs .