Using exclusive and inclusive routes
We discussed the Nexus repository manager in Chapter 8, Maven Repository Management. When Maven asks for an artifact from a Nexus proxy repository, Nexus knows where to look at exactly. For example, say we have a proxy repository that runs at http://localhost:8081/nexus/content/repositories/central/, which internally points to the remote repository running at https://repo1.maven.org/maven2/. As there is one-to-one mapping between the proxy repository and the corresponding remote repository, Nexus can route the requests without much trouble. However, if Maven looks for an artifact via a Nexus group repository, then Nexus has to iterate through all the repositories in that group repository to find the exact artifact. ...
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