Hi.

I am getting this error message when trying to load a Configuration:

Exception in thread "main" java.lang.NoClassDefFoundError: org/hibernate/cfg/Configuration
Caused by: java.lang.ClassNotFoundException: org.hibernate.cfg.Configuration
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:264)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:332)

I have added the path to the hibernate .jar file in classpath:
[...]/.m2/repository/org/hibernate/hibernate/3.6.0

Seems that hibernate.jar isn't available on your classpath. Can you provide more details about your setup?

Cheers, Maik

Ok,

I am using maven, and had some trouble getting hibernate through dependencies, so added the 3.6.0 release manually. The hibernate3.jar file was copied by maven into .../.m2/repository/org/hibernate/hibernate/3.6.0, and renamed hibernate-3.6.0.jar (as far as i can tell, same size and what looks to be same content).

I then added a dependency to hibernate in maven, like this:
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate</artifactId>
<version>3.6.0</version>
</dependency>

This compiles without errors with mvn install.

Then, when i try to run using java -jar on the resulting jar file, i get the above mentioned error message. I have tried adding both the .m2/repository/org/hibernate/hibernate/3.6.0, and the path where the hibernate3.jar file resides to my CLASSPATH, with the same result..

Do i need any other jar files in the classpath, besides the core hibernate jar?

Yes, you'll need all jars from hibernate-distribution/lib/required on your classpath:

antlr-2.7.6.jar
commons-collections-3.1.jar
dom4j-1.6.1.jar
javassist-3.12.0.GA.jar
jta-1.1.jar
slf4j-api-1.6.1.jar

Have a look at the starter guide:

http://docs.jboss.org/hibernate/core/3.6/quickstart/en-US/html_single/#hibernate-gsg-setup-releaseBundle

Cheers, Maik

Ok, thanks, will try that.

Quick question about classpath, does it work through folders, or do i need the exact folder where the file is? (since i'm using maven it would be a lot easier to just add .m2/repository to classpath..)

Added /hibernate-distribution-3.6.0.Final/lib/required and /hibernate-distribution-3.6.0.Final to the classpath, still not luck..

Edit: Having a real hard time understanding this, and googleling doesn't really help, since 90% of the things i find are old things that have been changed *sigh*..

Since i am using maven, the maven dependency way should be the easiest way to go.

The quick start guide you linked to tells me to use org.hibernate.hibernate-core. I check in the maven repository browser which version of hibernate-core should be available, and try some of these, but maven can't find them. So i'll try org.hibernate.hibernate, version 3.2.4.ga, which maven can find.

With the added dependency in maven, i shouldn't have to do anything else to get this to work?

Also, my resulting .jar file does not contain anything other than my compiled source files. Is this correct? Combined with setting the $CLASSPATH env variable to the locations of the hibernate jars (corresponding to the maven dependency), this should work?

I have also added the jar files to the project library in eclipse, dunno if this is needed..