Importing a decompiled plugin...

[ItzMGamer]

So i wanted to fix 21 > 16 arcade error stated here: http://blackspigot.com/threads/mineplex-arcade-connection-error.2992/#post-10328
So i imported it with ECLIPSE IDE and i get this crap errors..... i imported ALL Libraries but still..
https://gyazo.com/bb0520fd74fe238f758142cb1c62ce91
https://gyazo.com/79c7ff08268867510c7c8e3a7eaefd54
Code errors:
https://gyazo.com/d1e59a3144610b9f4e1a307f86c18aa9
https://gyazo.com/7610d04e19460ebe707e076f9b9986bf