Java.lang.ClassNotFoundException: org.springframework.expression.ParserContext Spring HelloWorld?

Question

I have a simple Spring HelloWorld program. Its contents are as follows:

pom.xml

<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.mahesha999.examples.spring</groupId> <artifactId>SpringExamples</artifactId> <version>0.0.1-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.2.RELEASE</version> </dependency> </dependencies> </project> 

eg1.xml

 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd"> <bean id="helloBean" class="com.mahesha999.examples.spring.eg1.HelloWorld"> <property name="name" value="Mahesha999" /> </bean> </beans> 

HelloWorld.java

 public class HelloWorld { private String name; public void setName(String name) { this.name = name; } public void printHello() { System.out.println("Spring : Hello ! " + name); } } 

App.java

 import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class App { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("eg1.xml"); HelloWorld obj = (HelloWorld) context.getBean("helloBean"); obj.printHello(); } } 

This gave me the following error:

 INFO: Loading XML bean definitions from class path resource [eg1.xml] Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/expression/ParserContext at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.java:628) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:516) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at com.mahesha999.examples.spring.eg1.App.main(App.java:8) Caused by: java.lang.ClassNotFoundException: org.springframework.expression.ParserContext at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 5 more 

When I changed the Spring version from 4.3.2 to 4.2.2 in pom.xml, it worked fine. Why is this so?

Answer 1

I was also getting the same error and it was fixed after adding spring -expression lib

Answer 2

I tested your code in eclipse and it works great with 4.2.2.RELEASE and 4.3.2.RELEASE. It prints below message. Can you clean the assembly or run the assembly from the command line.

 Spring : Hello ! Mahesha999 

Answer 3

You will receive this error only if there is no spring - expression "lib.
solution 1: If after adding spring -expression lib still exists, try adding a new version of spring library.

solution 2: Delete the spring.xml file with its package, and then create a new package with spring.xml.