Request Maven options to allow maven central mirror url

[wenqiglantz-agi]

Description:
Currently setup-java action generates the default maven settings.xml on the fly. It defaults to the maven central URL https://repo.maven.apache.org/, which unfortunately had an incident for a few hours on 4/19/2023 when that URL went down and our github actions workflows for CI stopped working. I would like to request if you could add additional option(s) in setup-java action to allow users to enter a maven central mirror URL such as https://repo1.maven.org/maven2 to work around incident like that if/when it occurs.

Justification:
In case of the default maven central URL goes offline, we need a way in the github actions CI workflows to instruct settings.xml auto generated by this action to point to a mirror URL for maven central.

Are you willing to submit a PR?

[IvanZosimov]

Hi, @wenqiglantz-agi 👋 Thanks for the feature request, we will take a look at it!

[IvanZosimov]

Hi, @wenqiglantz-agi 👋 Unfortunately, we decided to reject your feature request. We believe that adding the functionality that you asked for will add unwanted complexity to the action (one more input and additional logic). Moreover, such incidents with Maven Central are pretty rare, and their consequences could be fixed manually in the steps following the installation of Java.

[rhuitl]

We are using self-hosted runners and want to use a Maven mirror to reduce the traffic over our internet connection and speed up things. A way to merge the auto-generated settings.xml and our own file, or explicit support for adding mirrors, would have been nice.