I loaded up jbpm.3/jdpl as an eclipse project. No problem. Then I tried running the tests just by doing right-click and Run As | JUnit test. Many ran ok, but I got the following error. | java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory | at org.apache.jackrabbit.core.config.RepositoryConfig.<clinit>(RepositoryConfig.java:64) | at org.jbpm.jcr.jackrabbit.JackrabbitJcrServiceFactory.getRepository(JackrabbitJcrServiceFactory.java:48) | Is this the right way to run the tests? I couldn't find an ant target for it. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3958816#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...