I'm trying to fetch an artifact from the nexus URL and I want maven to search for it in first Nexus URL and if it fails to find, it should look for it in the second URL.

To be precise I want to add multiple repositories for XL Deploy.
Here's the format.

```
                  <deployables>
                        <was.War name="petclinic-war">
                            <contextRoot>petclinic</contextRoot>
                            <fileUri>maven:com.xebialabs.deployit.demo.petclinic:PetClinic:war:1.0</fileUri>
                             <tags>
                                <value>server1</value>
                             </tags>
                        </was.War>
                    </deployables>

```

[Here's the link of the XL Deploy config page](https://docs.xebialabs.com/xldeploy-maven-plugin/5.0.x/examples/external-artifact-reference.html)