What client side validation scheme does JBPM 6.0 use - if any?

[tmcclure0501]

I am having difficulty getting client side validatio working (both gwt and hibernate - javax.validation) with the errai framework - it does not appear jbpm 6.0 uses this appproach - what approach is used for javax.validation?

[swiderski.maciej]

jbpm does not use javax.validation at all. What parts of the system you would like to validate with it? Do you have custom entities that you would like to validate before storing them as part of the process state or?