Jportable 7u45 - or other older versions

I'm afraid the insecurities is the whole reason. I"m trying to deal with business critical infrastructure that requires old, outdated and unsafe versions of java. So, I plan to build an unsafe stand alone without internet access to hit these internal systems with the old version but mitigating the picking something up from the wilds of the internet. And then be able to install the stand alone and then update the old, outdated OS version of Java to be better protected. That's my whole point goal, to try to more safely use buggy, insecure crap because I have to.