Guava is a suite of core and expanded libraries that include

Vaadin server

Vaadin themes

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

Rich and fluent assertions for testing in Java

FreeMarker is a "template engine"; a generic tool to generate text output based on templates.

Mockito mock objects library core API and implementation

Spring Context provides access to configured objects like a registry (a context). It inherits its features from Spring ...

Engine API, used by endpoints and plugins

Reduced widgetset for the web endpoints based on Vaadin

Standard plugins which are distributed with the system:

Spring Test supports the unit testing and integration testing of Spring components with JUnit or TestNG. It provides ...

Business logic layer

Business logic layer

Data storage layer