Maven coordinates identify uniquely a project, a dependency, or a plugin defined in POM. Each entity is uniquely identified by the combination of a group identifier, an artifact identifier, and the version (and, of course, with the packaging and the classifier). The group identifier is a way of grouping different Maven artifacts. For example, a set of artifacts produced by a company can be grouped under the same group identifier. The artifact identifier is the way you identify an artifact, which could be JAR, WAR, or any other type of an artifact uniquely within a given group. The version element lets you keep the same artifact in different versions in the same repository.

All these three coordinates of a given Maven artifact are used to define its path in the Maven repository. If we take the following example, the corresponding...