Disable SLF4J warning "No SLF4J providers were found"

[st-cyrill]

What feature do you want to see added?

Everyone knows, console says No SLF4J providers were found

SLF4J: No SLF4J providers were found.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#noProviders for further details.

I want to disable this warning message.
According to https://www.slf4j.org/codes.html#noProviders,
message is reported when no SLF4J providers could be found on the class path.

Can I do it in the following ways?

1. Placing one (and only one) of slf4j-nop.jar slf4j-simple.jar, slf4j-reload4j.jar, slf4j-jdk14.jar or logback-classic.jar on the class path.
   If possible, could you contain a slf4j.jar (slf4j-nop.jar) file when building Docker image?

2. Other way, can I change additional class-path in jenkins-agent and jenkins-agent.ps1?
   Currently, -cp agent.jar is hard coded. It is useful to add slf4j-nop.jar in class-path.

Thank you for reading.

Upstream changes

No response