https://sg.news.yahoo.com/wont-accept-un-court-verdict-south-china-sea-090004410.html
http://globalnation.inquirer.net/140614/china-president-talks-tough-ahead-of-un-ruling
yesterday was the 95th anniversary of the foundation of the people's republic of china. president xi jinping delivered a speech praising china's exceptionalism, and said some pointed remarks about the UN vote happening today, like (paraphrasing): "no country should expect to compromise its sovereignty... we are not afraid of trouble... and any third party ruling (UN tribunal) is not acceptable."
the UN met with a 5 party council today to vote either in favor of china's continued building of artificial islands in the south china sea or the philippine's territorial integrity to fish nearby. the results are to be delivered july 12th, but china has already announced that if the vote is not to their liking, they will defy it
the US has sent warships into south china sea waters already as tensions began to mount. vietnam, the philippines, china, taiwan, and all other neighboring countries have claims to the body of water, so china's continued delinquency can't promise anything good
TL;DR : if UN votes that china's island building is illegal, china will keep building anyway