Known issues - Pscheidl/FortEE GitHub Wiki
Failsafe interceptor may not be automatically enabled and requires manual registration in beans.xml. This does not apply to Payara, as Payara team has fixed this issue.
<interceptors>
<class>com.github.pscheidl.fortee.failsafe.FailsafeInterceptor</class>
</interceptors>
This is a general issue with Glassfish 4 where interceptors are not automatically enabled by @Priority annotation and is not FortEE specific.