mcserver starts with a illegal reflective access by com.thoughtworks.xstream.core.util.Fields

[gfuenteAr]

Hi everybody, I need to resolve this situation.

someone already did it?

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.thoughtworks.xstream.core.util.Fields (file:/opt/mirthconnect/server-lib/xstream-1.4.12.jar) to field java.util.TreeMap.comparator
WARNING: Please consider reporting this to the maintainers of com.thoughtworks.xstream.core.util.Fields
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

INFO 2021-07-06 10:30:01,873 [Main Server Thread] com.mirth.connect.server.Mirth: Mirth Connect 3.11.0 (Built on April 6, 2021) server successfully started.
INFO 2021-07-06 10:30:01,875 [Main Server Thread] com.mirth.connect.server.Mirth: This product was developed by NextGen Healthcare (https://www.nextgen.com) and its contributors (c)2005-2021.
INFO 2021-07-06 10:30:01,876 [Main Server Thread] com.mirth.connect.server.Mirth: Running OpenJDK 64-Bit Server VM 11.0.11 on Linux (5.4.17-2102.202.5.el8uek.x86_64, amd64), derby, with charset UTF-8.
INFO 2021-07-06 10:30:01,876 [Main Server Thread] com.mirth.connect.server.Mirth: Web server running at http://192.168.xxx.xxx:8080/ and https://192.168.xxx.xxx:8443/

First, I describe my server's environment:

operating system:
Virtualization: vmware
Operating System: Oracle Linux Server 8.4
5.4.17-2102.202.5.el8uek.x86_64 #2 SMP Sat May 22 16:16:03 PDT 2021 x86_64 x86_64 x86_64 GNU/Linux

Java:
openjdk version "11.0.11" 2021-04-20 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.11+9-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.11+9-LTS, mixed mode, sharing)

NextGen connect integration engine version:
Mirth Connect 3.11.0 (Built on April 6, 2021)

What is the reason for the illegal reflection access error?

How can i solve it?

I installed and started the server from the root account

Thank's a lot in advance for any suggestion.

Gustavo
Buenos Aires - Argentina.

P.D: Sorry about my english...it isn't my native tongue.

[pacmano1]

Don't worry about it.

[gfuenteAr]

Thank's a lot!!

Untill I learn more about it...I'll follow your recommendation!!!

probably in next upgrades...it became a error message instead a warning.

Have a nice week and thank you spending your time...answering me.

Gustavo

[jonbartels]

A related issue might be #4602 . #4602 is a fatal issue for that user but the one presented in this discussion is just a warning.

[tonygermano]

This issue is related to x-stream/xstream#101
It looks like it has at least been partially addressed in x-stream/xstream#216 and x-stream/xstream#218, but I'm not sure if/when mirth is planning to upgrade xstream and pull in those changes.