If all you got to was step 7.a.3 then you did not Release it.
I think you need to Close it?
- Log into the nexus repo.
- Click on the link "Staging Repositories" on the left side under the section called "Build Promotion".
- Next, select the checkbox next to the staging repository which contains your userid. Then click on the "Close" button at the top of the repository list.
- "Closing" the repository does not mean that the artifacts are promoted, it only means that no additional artifacts can be added.
Once it is "Staged" you can then get the URL to be used in your settings.xml. Which leads to the next question.
This may be obvious but did you add the release repo to your settings.xml?
Something like
<profile>
<id>acme-staging-repository</id>
<repositories>
<repository>
<id>jboss-staging-repository</id>
<name>Staging Maven Repository</name>
<url>https://repository.acme.org/nexus/content/repositories/acme_releases_staging_profile-1898</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>false</enabled>
<updatePolicy>never</updatePolicy>
</snapshots>
</repository>
</repositories>
</profile>
<activeProfiles>
<activeProfile>acme-staging-repository</activeProfile>
</activeProfiles>