Players with name containing chars higher than 127 can't join on servers

In the sourcecode of minecraft this function is used to verify username validation

public static boolean isValidUsername(String s) {
      return s.chars().filter(paramInt -> (paramInt <= 32 || paramInt >= 127)).findAny().isEmpty();

The problem is that there are existing users that will fail this check.

List of usernames:

• Sengångaren
• Séboutron
• Schokobrötchen

Direkt Mojang-API Links to the accounts that are not able to join:

https://sessionserver.mojang.com/session/minecraft/profile/166e87b2-7cb7-48a6-9349-9f81ab520d49
https://sessionserver.mojang.com/session/minecraft/profile/4f022972-b336-4bc5-a7fe-09be3a7facbc
https://sessionserver.mojang.com/session/minecraft/profile/35a4ec32-3974-448e-8f98-0c5e400ab895