Core annotations used for value types, used by Jackson data binding package.

Annotations the SpotBugs tool supports

Guava is a suite of core and expanded libraries that include

JavaBeans Validation (Bean Validation) is a validation model that can add constraints to the beans with annotations ...

Rich and fluent assertions for testing in Java

Jakarta Expression Language Implementation

Hibernate's Jakarta Validation reference implementation.

TestNG is a testing framework inspired from JUnit and NUnit but introducing some new functionalities that make it more ...