When connected to an openshift 3 instance having the latest middleware templates, that use required parameters, create a new Application. If you click on one template, like amq6-persistent-ssl, then select (dbl-click) the eap6-basic-s2i one, you'll see:

• required param reported in error, but is not listed
• decoration does not match error displayed
• can't go to next page as validation is impossible to achieve

The eap6-basic-template should work OOTB.

When selecting a template in the treeview, databinding populates validation requirements in the model, but these requirements are not reset when selecting another template.

The only workaround is to close the wizard and make sure you directly select the proper template on the first try.