javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL does not work anymore since Java EE 7 / EL 3.0

Question

    javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL
    true         


        

Answer 1

The sample codes obj condition checking is wrong. At update model phase, the obj is passed at null. After correct to the code below, my custom ELResolver works.

 @Override
public Object convertToType(final ELContext context, final Object obj, final Class targetType) {
    if (obj == null && String.class.equals(targetType)) {
        context.setPropertyResolved(true);
    }
    return null;
}