This commit allows BungeeCord to support Minecraft clients both of versions 1.7.x and of 1.8.x. There should be no breakages to any other support, however following their deprecation and uselessness within 1.8, the Tab list APIs have been removed.
Please report any issues to GitHub and be sure to mention client, server and BungeeCord versions.
When used with an appropriate server jar (such as multi protocol Spigot), this will allow clients of many versions to concurrently be connected to the same set of servers.
Java uses ! to indicate a resource inside of a jar/zip/other container. Running Bungee from within a directory that has a ! will cause this to muck up.
This commit adds the basis for the intergration of a security manager into BungeeCord. The goal of the security manager is to prevent plugins from doing potentially dangerous or otherwise undesirable behaviour that may damage the stability of Bungee itself or pose a risk to the user's server.
One common theme in some Bungee plugins, especially those which were written in the very early days, is using Threads and ExecutorServices for scheduling purposes. Not only is this inefficient as there is no use of the thread caching features provided by the scheduler, it is also difficult to track who created which thread. Additionally creating threads not managed by the BungeeCord scheduler poses issues for when|if a plugin reload system is implemented, as these threads cannot be appropriately cleaned up and may continue to leak class references or perhaps even continue executing.
At this stage the SecurityManager is set to warn of prohibited actions, but not block them. For some plugins using external APIs, where usage of an ExecutorService is unavoidable, we have included an Unsafe interface to the scheduler which allows direct access to the underlying ExecutorService, or potentially a compatability wrapper.
This will attempt to make use of Netty's EpollEventLoopGroup and Epoll(Server)SocketChannel when on Linux and the native libraries load correctly. It should bring a large increase in performance and hopefully reliability. Big thanks to the @netty team for implementing this and @normanmaurer for some tips on the support detection.
Feedback is appreciated.
