Validation Error: Value is not valid
To the point, this error means that the selected item does not match any of the items available in the list. I.e. the object represented by the selected item value has never returned true on its equals() call with any of the available select items.
There are only two causes for this problem:
- The
equals() method of the object type in question is broken.
- The contents of the list of items is different during the validations phase of the form submit request than as it was during the render response phase of the initial request to display the form.
Since the first seems to be properly implemented -as per the comments-, the only cause left is the second. Assuming that you're nowhere doing business logic in a getter method, an easy test is to put the #{assessmentBean} in the session scope. If it works, then the data (pre)loading logic of the list of select items is definitely wrong.
