if you have any evidence of 21st century large scale official denial of japanese war crimes by japan please don't hesitate to bring it forward! as you are no doubt referring to shinzo abe's comments (who isn't the prime minister anymore!) please note that one man does not make the state, and that he commented specifically on government coercion. he wrote about the IMTFE-convicted war criminals in his book toward a beautiful nation
No man there are quite a few things which the government has never acknowledged or apologized for. The comfort women are a particularly egregious example. Japan (and the rest of the Far East Asian countries for that matter) have a particular knack for keeping even relatively old issues highly political and flat out refusing to discuss them or admitting that they were deplorable mistakes. What's more, this isn't exactly some deeply hidden truth.
also fuck japan, other than a dope noiserock scene and some nice countryside japan is a spectacular cultural wasteland built upon one of the most disgusting empires this planet has ever seen.
You absolutely need to go there sometime man because it's still an amazing country. I've seen tons of brilliant things there and if you speak some basic Japanese everybody will happily share half their sake with you. If you can't go to Tokyo because you'll have a panic attack walking down Shibuya or the other expensive streets that's your prerogative, but I can vouch for the fact that it's a profoundly interesting and friendly society. Plus, all the escalators are always working.