But if I include all the JARs downloaded by maven as external jar it throws ClassNotFound Error for com.github.fge..jsonSchema.JsonSchemaFactory.class ...

In JBOSS, it will set java.util.logging.manager to a JBOSS class. So, when I run code in premain, I can't access to the LogManager, it trigger ClassNotFound. I recommend not to use java.util.logging ...

Exception in thread "main" java.lang.NoClassDefFoundError: Test/class</pre><BR><BR>The only import stuff is the package statement and the java.util.*;. I kind of flying blind here trying to get this ...