title: How to copy maven artifacts from one repository to another
body: <p>How can I copy the maven artifacts from one repository to another? 
  I create a release and I do not want to publish this release immediately. I want to leave it for some days as "internal" to test it. Later on, when all tests pass, I want to move these artifacts into a public release repository. </p>
  
  <p><a href="http://maven.apache.org/plugins/maven-stage-plugin/usage.html" rel="nofollow noreferrer">maven-stage-plugin</a> is no longer maintained.</p>
  
  <p>The release plugin would build a new release, but I want to use the same artifact, that has already been tested.</p>