Playframework IllegalStateException after form validation

I tried to write a custom form validator for play 2.0.1 using JSR-303 annotation (class-level) and validator implementations. Unfortunately, when i submit the form and validation fails i get an IllegalStateException that might be a play's bug (but i would like to confirm). Please find below the relevant code extracts and the problem description (only relevant parts for clarity's sake) Part of the controller code (receiving the form submit) ``` public static Result save() { Form<UserForm> userForm = form(UserForm.class).bindFromRequest(); if (userForm.hasErrors()) { return badRequest(createForm.render(userForm)); } UserForm user = userForm.get(); ``` The validator is declared as ``` public class FieldMatchValidator extends Validator<Object> implements ConstraintValidator<FieldMatch, Object> ``` The validation annotation is declared as ``` @Target({TYPE, ANNOTATION_TYPE}) @Retention(RUNTIME) @Constraint(validatedBy = FieldMatchValidator.class) @play.data.Form.Display(name="constraint.fieldmatch") public @interface FieldMatch { String message() default FieldMatchValidator.message; Class<?>[] groups() default {}; Class<? extends Payload>[] payload() default {}; ``` Submitting the form i get the error ``` Caused by: java.lang.IllegalStateException: No value at play.libs.F$None.get(F.java:217) ~[play_2.9.1.jar:2.0.1] at play.data.Form.get(Form.java:363) ~[play_2.9.1.jar:2.0.1] at controllers.UsersController.save(UsersController.java:40) ~[classes/:2.0.1] at Routes$$anonfun$routes$1$$anonfun$apply$25$$anonfun$apply$26.apply(routes_routing.scala:189) ~[classes/:na] at Routes$$anonfun$routes$1$$anonfun$apply$25$$anonfun$apply$26.apply(routes_routing.scala:189) ~[classes/:na] at play.core.Router$HandlerInvoker$$anon$4$$anon$1.invocation(Router.scala:1086) ~[play_2.9.1.jar:2.0.1] ``` The mentioned UsersController's line is the call UserForm user = userForm.get(); Trying to understand where the problem is i found that the offending code is probably in play's Form.java. The Form bind(Map data, String... allowedFields) contains: ``` if(result.hasErrors()) { for(FieldError error: result.getFieldErrors()) { ... } return new Form(rootName, backedType, data, errors, None()); } ``` And the hasErrors() is ``` public boolean hasErrors() { return !errors.isEmpty(); } ``` What happens is that result.hasErrors() returns true (because the validator defined at class level failed), but the built errors list remains empty (result.getFieldErrors() returns an empty list). As a consequence Form.hasErrors() returns false but Form.get() fails. Am i missing something or is it actually a bug ? Thanks and regards,