NoClassDefFoundError: org/springframework/context/ApplicationContext

[Rohit Rai]

Hi,

I have just started working on springs and have done my first "Hello World" example. It is working fine - one place that i am getting stuck with is do i need to set the spring.jar and related jar's in my classpath in order to execute it from the command line?

The sample program works fine in Eclipse - but now i have made a jar and want to execute it from the command line and i am getting the following error - i tried to set the springs.jar to the classpath but its not working - what am i missing - [this is bugging ]

C:\>java -jar rohit.jar

Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/core/io/Resource
Caused by: java.lang.ClassNotFoundException: org.springframework.core.io.Resource
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: com.bbb.ccc.ddd.test.HelloWorld. Program will exit.

[Adam Koblentz]

Are you sure you're exporting the jar correctly?

[Mark Spritzler]

Yes, you need the Spring jars in your classpath in order for it to find Spring classes.

And it is Spring. There is no pluralization of it. It is the Spring Framework.

Mark

[Rohit Rai]

Thanks for the inputs - yes we need to put the jar's in the class path

[Rohit Rai]

By the way an update on this - i was using maven for the build ... so finally i figured a way out for this . while creating the jars put in all the dependent jars - i am not too sure if it's the correct approach but since the program that i was trying to do is a standalone one i thought of using it ... in pom.xml you can use the following plugin

	<build>
		<plugins>
			<plugin>
				<artifactId>maven-assembly-plugin</artifactId>
				<version>2.2-beta-5</version>
				<configuration>
					<archive>
						<manifest>								
							<mainClass>com.test.abc.HelloWorld</mainClass>          
						</manifest>
					</archive>
					<descriptorRefs>
						<descriptorRef>jar-with-dependencies</descriptorRef>
					</descriptorRefs>     
				</configuration>
			</plugin> 
		</plugins>
	</build>

and create the jar using

mvn -o compile assembly:assembly

and execute as you normally do using

java -jar hello-world-1.0-jar-with-dependency.jar