This is not a JBoss issue. It has to do with Jackson, the JSON libary you are using.
ey.api.client.ClientHandlerException: org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "losowner" (Class com.voxportal.web.asset.LineOfServiceBean),
Search the internet for that error message and I'm sure it'll turn up suggestions on what you can do to resolve the issue.
Try to learn how to spot things like that in stack traces -- these kind of things happen all the time and being able to diagnose a problem is the first step towards self-sufficiency. If you get really stuck, at least you will be able to ShowSomeEffort (←click on that link) before asking for help.
I didn't post this in JBOSS - it was moved there for me. I saw the error and I have spent many hours trying to figure out why it says that field is not in the bean when I am adding it there. Hence, the question of how do you add a field into a bean. If a bean is inheriting it's "beanship" from other beans, does the field have to be defined to the other beans too?
The only thing I can think of is that you have an older LineOfServiceBean.class file hanging around somewhere. Try cleaning out your target directory of all .class files and rebuild/recompile everything. If you're using Maven then do mvn clean first.