I get that, if India helped Japan or Philippines in a situation like India Pakistan I guess the Chinese would be pissed. The problem now is the Pakistan relationship was cemented when nobody wanted to play with China but the poor kids. Now that China is bigger and richer, China can't just say, yea I got new friends now, more important than you so, have a good life.
It's a tough situation to say the least, but more dialog and perhaps more transparency.
But one thing is weird to me, I hate to admit this but China hates Japan not really for the War but for Japan batting out of order in Chinese Eyes. The number 9 hitter batted clean up and is hitting home runs, while the former clean up hitter is striking out each time. What's the deal with India Pakistan? Is it just border issues?