Get value of TypedMap from Constraints.ValidationPayload

We’re using playframework 2.8 with java and have implemented a form validation using DI and a payload as explained in the official play documentation https://www.playframework.com/documentation/2.8.x/…

Fixed length Validation using Javax api

request response can be validated using javax annotation. However, need some help to have fixed length validation, as @Size(min=3, max=3). It is having message that ‘size must be between 3 and 3’. …

in Java HV000030: No validator could be found for constraint ‘javax.validation.constraints.Email’

I am trying to send html email notification when user submits a form but I am getting an error. Can you please look at it? There was an unexpected error (type=Internal Server Error, status=500)….

How to properly validate PNG header in java?

I’m trying to write a function which will check if PNG file is not corrupted. Here I found a function, also provided below, which stores file bytes into its own byte array. I know that the first eight …

How to raise a ConstraintValidationException in a test case for bean properties with validation annotations?

I’m trying to test that my beans have correct validation annotations. I’m using spring-boot. Here is an example test case: package com.example.sandbox; import static org.assertj.core.api.Assertions….

How do I only allow the user to enter sensible height and weight values in Edit Text? Java

I’m making a super simple BMI calculator app using Java in android studio but I’d like to make it so that the user is only able to enter sensible values for their height and weight. I was thinking …

How to check password for number of lowercase letters entered?

I am using the below script to check my passwords for length, number of uppercase letters and number of digits. Is there a way to make it also check for the number of lowercase letters? I tried to …

hibernate validator throws exception ValidationException: HV000028 for @Past annotation

I am validating an entity with a hibernate validator in a spring boot project. I got an exception for the Date validator @Past . I faced javax.validation.ValidationException: HV000028: Unexpected …

Custom validation with javax.validation

I’m trying to make a custom java validation annotation and returns me Request processing failed; nested exception is javax.validation.ConstraintDeclarationException: HV000144: Cross parameter …

Why is @Validated required for validating Spring controller request parameters?

With the following validation setup in an annotated MVC controller: @RestController @RequestMapping(“/users”) @Validated // <-- without this, the @Size annotation in setPassword() has no ...