Ok, I am at the end of my rope here. My computer just updated (without my permission I might add, I HATE this "feature") and when I run this mod pack everything goes fine, until about 3 minutes in, regardless if I have joined a server or not, then boom, Java crashes. There is nothing out of the ordinary in the console logs, it just ends, sometimes on the same task sometimes not. I cannot find the Java error logs at all, either they were not generated or I am looking in the wrong place. I should note the error box "Java SE Platform has stopped working" does appear, so one would think a log would be generated, but again, I cannot find it. Any help would be much appreciated. Yes I have updated java, yes I have tried uninstalling and reinstalling the pack.
Edit: After some time I have found that the Event manager indicates that there is an exception_access_violation for the process ntdll.dll from java. Usually this indicates a lack of ram, I upped the ram used and still got a crash, this is very frustrating because something in the update broke this.
Final Edit: Think I fixed it, turns out you NEED to fully uninstall java if you intend to replace/repair it, installing on top of an existing version does not help.