booted from game

Since updating to the 1.9 patch whenever I go into a realm or start a new seed I can only be in game for a few mins before being booted from the game! This keeps showing up each time it happens. I am not sure what it means but I am guessing its important.
A fatal error has been detected by the Java Runtime Environment:
EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffc39ff2177, pid=7564, tid=8572
JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
Problematic frame:
C [ig75icd64.dll+0x12177]
Failed to write core dump. Minidumps are not enabled by default on client versions of Windows