[doc] System property required for JMX setup

[honnix]

Description

System property required for JMX setup.

Without it, JVM throws an exception complaining:

java.lang.RuntimeException: System property 'com.sun.management.jmxremote.rmi.port=null' does match configured RMI server port 9081

More specifically it is this line: https://github.com/airlift/airlift/blob/master/jmx/src/main/java/io/airlift/jmx/JmxAgent.java#L65

Is this change a fix, improvement, new feature, refactoring, or other?
A doc improvement.

Is this a change to the core query engine, a connector, client library, or the SPI interfaces? (be specific)
No.

How would you describe this change to a non-technical end user or system administrator?
NA

Related issues, pull requests, and links

It was first reported by #7843

Documentation

( ) No documentation is needed.
(x) Sufficient documentation is included in this PR.
( ) Documentation PR is available with #prnumber.
( ) Documentation issue #issuenumber is filed, and can be handled later.

Release notes

(x) No release notes entries required.
( ) Release notes entries required with the following suggested text:

# Section
* Fix some things. ({issue}`issuenumber`)

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to cla@trino.io. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[honnix]

I'm working the CLA thing.

[mosabua]

Minor edit .. but we also need a signed CLA to merge. Could you send that?

[honnix]

Minor edit .. but we also need a signed CLA to merge. Could you send that?

Thank you for reminding me of this PR. I will try to get a CLA signed.

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to cla@trino.io. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to cla@trino.io. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to cla@trino.io. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[mosabua]

Please squash the commits if possible and make sure you send a CLA.

[mosabua]

Can you rebase this into the new jmx.md file and submit a CLA?

[honnix]

Sure I can do that. Unfortunately the CLA is taking too much time to get. If you think this PR is useful, I don't mind at all you applying the change in another PR. @mosabua

[mosabua]

Linked PR is merged @honnix so this will go live with the 424 release

[honnix]

Thank you @mosabua !