What is Maven?

Introduction

Maven is a Java dependency manager

A dependency is a set of classes that provide functionalities to a Java project.

Each dependency can define its scope, used to limit the transitivity of a dependency and to determine when a dependency is included in a classpath.

There are 6 different scopes:

compile: default scope, if none is defined. The dependency is available in all classpaths of a project
provided: similar to compile, but JDK or a container is expected to provide the dependency at runtime
runtime: the dependency is not required for compilation, but is for execution
test: the dependency is only available for test compilation and execution phases; not transitive
system: similar to provided, except that a JAR that contains it is explicitly provided; the artifact is always available and is not looked up in a repository
import: only support on a dependency of type pom in the <dependencyManager> section. The dependency is to be replaced with the effective list of dependencies in the specified POM’s <dependencyManagement> section. Since they are replaced, dependencies with a scope of import do not actually participate in limiting the transitivity of a dependency

@Data: Lombok dependency annotation that bundles the features of @ToString, @EqualsAndHashCode, @Getter / @Setter and @RequiredArgsConstructor together