Spring java.lang.NoClassDefFoundError

Question

I'm totally a newbie in springs so I wanted to try a helloworld program in springs. I came across this tutorial.

I downloaded the source code with library provided on this site, I have the latest Spring STS installed on my Eclipse Kepler. I got this error :

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory at org.springframework.context.support.AbstractApplicationContext.(AbstractApplicationContext.java:153)
at org.springframework.context.support.AbstractApplicationContext.(AbstractApplicationContext.java:217)
at org.springframework.context.support.AbstractRefreshableApplicationContext.(AbstractRefreshableApplicationContext.java:88)
at org.springframework.context.support.AbstractRefreshableConfigApplicationContext.(AbstractRefreshableConfigApplicationContext.java:58)
at org.springframework.context.support.AbstractXmlApplicationContext.(AbstractXmlApplicationContext.java:61)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:136)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:83)
at com.vaannila.HelloWorldApp.main(HelloWorldApp.java:9)

Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 8 more

I also tried manually doing the entire program with a different class name and It throws the same error.

Things I have tried:

1. built path and included the springframework jars
2. also included commons-logging-1.1.1.jar

Answer 1

I got past this exception by adding commons-logging-1.1.1.jar to the classpath of my project. I had it in my maven repository from other projects.

Plus, to make the example work, the file name for the instantiation of ClassPathXmlApplicationContext needs to be qualified with the package path. If you are following the example exactly, you need to instantiate your context like this:

ApplicationContext context = new ClassPathXmlApplicationContext("com/vaannila/beans.xml");