Why you are getting “An illegal reflective access operation has occurred.”

[freyacodes]

You may have seen this scary red warning (or something similar) when starting Lavalink:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.xnio.nio.NioXnio$2 (file:/home/frey/.gradle/caches/modules-2/files-2.1/org.jboss.xnio/xnio-nio/3.3.8.Final/8dafaf230666e526c53e544ab6a9d6ecfcbab4ee/xnio-nio-3.3.8.Final.jar) to constructor sun.nio.ch.EPollSelectorProvider()
WARNING: Please consider reporting this to the maintainers of org.xnio.nio.NioXnio$2
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

This message has been appearing since Java 9. This is due to the new module system in Java 9 which puts currently-unenforced restrictions on reflection. This is a problem with our dependencies that will be resolved at a later time.

This “future release” is not out yet, and this warning is otherwise harmless.

See also: https://www.oracle.com/corporate/features/understanding-java-9-modules.html

[Elite230]

Anyway How do i fix this? my bot is not connecting