ascii gets replaced wrong after an upgrade run

[lonesomewalker]

Used text in defaultWelcomeMessage which contains converted native2ascii text gets wrong replaced.

Example: f\u00fcr After update to newer version: fu00fcr

Seems the regex is broken for this case.

[michi-80337]

This is a similar issue as in #399, but here the \1 ... \9 replacement seems to be the source of trouble.

[GhaziTriki]

Since BigBlueButton is still using JDK8 you need to convert the character encoding. Just do this:

sudo apt-get install -y openjdk-8-jdk-headless
sudo native2ascii "bbb-web.properties"

[GhaziTriki]

Should no more be an issue since JVM11 is now being used.