Validation Libraries
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Accord is a validation library written in and for Scala. Its chief aim is to provide a composable, dead-simple and self-contained story for defining validation rules and executing them on object instances. Feedback, bug reports and improvements are welcome!
Last Release on Mar 11, 2020
Apache Geronimo implementation of the JSR-380 Bean Validation Spec API
Last Release on Oct 19, 2020

stand-alone validation type
Last Release on Oct 9, 2017
Jodd VTor is focused validation framework for any Java object.
Last Release on Oct 13, 2020
gwt validation framework based on JSR-303
Last Release on May 15, 2012
Validation Framework :: Core
Last Release on Jul 31, 2022
Library for support of field validation
Last Release on May 30, 2017
Single Responsibility Principle (SRP) libraries collection
Last Release on Jul 10, 2024
This library offers components that facilitate validation of arbitrary objects and how they are serialized towards a client. It focuses on the wiring of the proposed patterns and does not contain any concrete validator implementations.
Last Release on Feb 16, 2015
Valdr Bean Validation
Last Release on Sep 26, 2023