mvn package will construct your artifactory, i.e. a jar file and then place it in the current working directory
mvn install will put your packaged maven project i.e. a jar file into the local repository, so that your other local application can use it as a project dependency. Just like dms-encryption-util, we have to install it into ~/.m2/repository directory so that it can be found.
When your project does not find the dependency locally, it will fetch it from the remote repository and put it into ~/.m2/repository
mvn release will tag your current code in the specified SCM (version control system) and then change your version in your project. Basically it help you do automatic version tagging on GitHub
This is not the default life cycle phase, it is
mvn deploy will put your packaged maven project into the remote central repository, maven or internal repository that you have specified for sharing with other developers
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