This is a simple JSF form using angularized PrimeFaces <a:inputTexts> and an <a:commandButton>.

This is not an integer.
invalid number.
must be greater than or equal to 7.
must be less or equal to 50.
Value is required.
This is not an integer.
invalid number.
must be greater than or equal to 10.
must be less or equal to 100.
Value is required.
Angular's calculation: {{toString(number1)}} + {{toString(number2)}} = {{add()}}
This is not an integer.
invalid number.
Value is required.