It is, in no way, okay or acceptable.
Best case:
"We're releasing a new version that fixes MANY NASTY EXPLOITED SECURITY HOLES and by the way fucks around with your browser settings. If you don't install it, you get constant nagging to update, and if you do install it, you'd better pay attention or we will install a bunch of shit you don't want."
More likely case:
"We're releasing a new version that fixes MANY NASTY EXPLOITED SECURITY HOLES and by the way fucks around with your browser settings. If you don't install it, you get constant nagging to update, and if you do install it, we install a bunch of horseshit shovelware that there is no chance to prevent."
Fuck that bullshit. Java is quickly becoming the next flash - a framework of yesteryear that has outlived it's usefulness.