I set up required="true" in my form property, but this is checked only on server side. How can I display an error message on the client browser, so that he knows that this field is mandatory ?
Im not sure if I can follow you. You talk about client side validation and now about Eclipse. What enviroment are your processes running in? The ecliplse plugin is for creating the process definitions … the environment needs to use the definition to actually know what to do/validate.