Illegal thread group access

[Soledge]

Plugin performed restricted action, please inform them to use proper API methods: Illegal thread group access
java.security.AccessControlException: Plugin violation: Illegal thread group access
at net.md_5.bungee.BungeeSecurityManager.checkRestricted(BungeeSecurityManager.java:39)
at net.md_5.bungee.BungeeSecurityManager.checkAccess(BungeeSecurityManager.java:62)
at java.lang.ThreadGroup.checkAccess(ThreadGroup.java:315)
at java.lang.Thread.init(Thread.java:389)
at java.lang.Thread.init(Thread.java:349)
at java.lang.Thread.(Thread.java:444)
at com.fuzzoland.CommandSyncServer.ClientHandler.(ClientHandler.java:25)
at com.fuzzoland.CommandSyncServer.ClientListener.run(ClientListener.java:20)

[Soledge]

this error is followed by this:

11:37:48 [INFO] [CommandSync] Received new connection from localhost.localdomain:50698.
11:37:48 [INFO] [CommandSync] [localhost.localdomain:50698] [Hub] Provided an invalid password.

and my commands wont actually issue.

[adambkehl]

Bump.

[adambkehl]

@Soledge Dude: 11:37:48 [INFO] [CommandSync] [localhost.localdomain:50698] [Hub] Provided an invalid password. means the password wasn't set correctly in the config of both the server, and the client... It works, but the illegal group access error still appears. Also, please update to the latest and correct ways of doing things. Asynchronous commands aren't allowed.

[HeroCC]

Same issue here, it is really annoying.

[HeroCC]

Any updates on this?

[Gregin]

Same issue here

[nurdism]

same issue

[FarrentFTW]

Same issue for me too, I need a plugin like this and I can't find one, except this. Really frustrating that it doesn't work.