Maven release plugin fails : source artifacts getting deployed twice

Question

We are using the maven release plugin on hudson and trying to automate the release process. The release:prepare works fine. When we try to do the release:perform , it fails

Answer 1

I had the same problem. Basically, the error message is issued when an artifacts is sent to Nexus twice. This may be twice to the same Nexus repository or even across different repositories within the same Nexus.

However, the reasons for such a misconfiguration may vary. In my case, the artifacts were uploaded correctly during a mvn clean deploy build step in Jenkins, but then failed when a second deploy had been attempted. This second deploy had been configured in a Jenkins post build step "Publish artifacts in Maven repository".