Provides classes that support the production of instances.

Provides classes that support the random generation / initialization of virtually any type.

Contains variants of basic functional constructs that can throw checked exceptions,

Provides generic envelope classes that support lazy initialization

Provides a simple pooling of "expensive", reusable but thread-sensitive instances.

Provides handling of properties of complex types

JUnit Jupiter is the API for writing tests using JUnit 5.

Module "junit-jupiter" of JUnit