Spring 3.1 Java based configuration -- IllegalStateException - spring

Question

I am working my way through a Spring tutorial, I have the following code, using Java based configuration, that isn't working. In my classpath I have the Spring 3.1 jars, as well as asm-4.0.jar and cglib-2.2.2.jar.
MainApp.java:
package com.tutorialspoint;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.*;
public class MainApp {
public static void main(String[] args) {
ApplicationContext ctx = new AnnotationConfigApplicationContext(
HelloWorldConfig.class);
HelloWorld helloWorld = ctx.getBean(HelloWorld.class);
helloWorld.setMessage("Hello World!");
helloWorld.getMessage();
}
}
HelloWorldConfig.java:
package com.tutorialspoint;
import org.springframework.context.annotation.*;
#Configuration
public class HelloWorldConfig {
#Bean
public HelloWorld helloWorld() {
return new HelloWorld();
}
}
HelloWorld.java:
package com.tutorialspoint;
public class HelloWorld {
private String message;
public void setMessage(String message) {
this.message = message;
}
public void getMessage() {
System.out.println("Your Message : " + message);
}
}
Error code:
Exception in thread "main" java.lang.IllegalStateException: Cannot load configuration class: com.tutorialspoint.HelloWorldConfig
at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:456)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigurationClasses(ConfigurationClassPostProcessor.java:202)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:176)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:604)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:437)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:68)
at com.tutorialspoint.MainApp.main(MainApp.java:8)
Caused by: java.lang.VerifyError: class net.sf.cglib.core.DebuggingClassWriter overrides final method visit.(IILjava/lang/String;Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;)V
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at net.sf.cglib.core.AbstractClassGenerator.<init>(AbstractClassGenerator.java:38)
at net.sf.cglib.core.KeyFactory$Generator.<init>(KeyFactory.java:127)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:112)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104)
at net.sf.cglib.proxy.Enhancer.<clinit>(Enhancer.java:69)
at org.springframework.context.annotation.ConfigurationClassEnhancer.newEnhancer(ConfigurationClassEnhancer.java:101)
at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:89)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:448)
... 6 more

Answer 1

I changed the asm jar file from asm-4.0.jar to asm-3.3.jar, and it worked. There must have been a conflict between the first asm jar and the cglib jar I was using.

Answer 2

I was using cglib-2.1_3.jar and asm 3.1.jar when I ran in to this problem for the first time. After I removed the asm 3.1.jar and added asm- 1.5.3.jar it started working.

Answer 3

I was use cglib-2.1_3.jar and asm- 1.5.3, after using this jar my program run successfully.
ASM Core » 1.5.3
cglib-2.1_3.jar

Answer 4

Just adding this answer in case someone runs into the weird corner case issue I experienced.
This can also happen when the Jar file isn't properly signed.