Nexus OSS 3 - UI not showing proxied components - maven

Question

I've installed a fresh new Nexus Repository OSS 3.3.2-02. It has a maven-central repository pre-configured. Without changing anything I just grabbed URL for accessing this proxy repository and added it to my local M2 settings.
When I try building some project, my dependencies are correctly fetched and project built. Here is a look of maven client logs:
[INFO] ------------------------------------------------------------------------
[INFO] Building jiraBootcamp 1.0.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for com.atlassian.jira:jira-api:jar:7.2.2 is missing, no dependency information available
[WARNING] The POM for com.atlassian.plugin:atlassian-spring-scanner-annotation:jar:2.1.1 is missing, no dependency information available
[WARNING] The POM for com.atlassian.activeobjects:activeobjects-plugin:jar:1.2.3 is missing, no dependency information available
[WARNING] The POM for com.atlassian.plugins.rest:atlassian-rest-common:jar:1.0.2 is missing, no dependency information available
[WARNING] The POM for com.atlassian.sal:sal-api:jar:2.6.0 is missing, no dependency information available
Downloading: https://devtools.morosystems.cz/nexus/repository/maven-central/org/projectlombok/lombok/1.16.4/lombok-1.16.4.pom
Downloading: http://repo.maven.apache.org/maven2/org/projectlombok/lombok/1.16.4/lombok-1.16.4.pom
Downloaded: http://repo.maven.apache.org/maven2/org/projectlombok/lombok/1.16.4/lombok-1.16.4.pom (2 KB at 10.5 KB/sec)
The problem is that when I browse Nexus UI I would expect Lombok library to be:
present in Components/Assets view,
searchable.
However, this is not working as the views are empty and search finds nothing.
Please, can you help me find what is wrong? It is the first time I configure Nexus OSS 3 so solution may be very simple.
Thank you very much!

Answer 1

Your maven log shows that the component wasn't downloaded from Nexus:
Downloading: http://repo.maven.apache.org/maven2/org/projectlombok/lombok/1.16.4/lombok-1.16.4.pom
Set up Nexus as a mirror of all repositories in Maven as outlined here:
http://books.sonatype.com/nexus-book/reference3/maven.html#maven-sect-single-group
That will prevent Maven from accessing repositories other than Nexus.