https://bugs.openjdk.java.net/browse/JDK-8144445
Please review that webrev that improves overflow checks in ArrayCache: http://cr.openjdk.java.net/~lbourges/marlin/marlin-8144445.0/ Changes - check 2Gb overflow in both getNewSize() and getNewLargeSize() - check negative size / needSize (potential integer math overflow) - fixed Stroker to use substraction and avoid integer overflow - added ArrayCacheSizeTest class which now passes in jtreg Jim's previous comments: The change looks fine. Are the long modifiers (12L, 1L, etc) really needed on the shift parameters given that the first operand (needSize) is already a long? 202 size = ((needSize >> 12L) + 1L) << 12L; I prefer keeping the long modifiers to be more explicit. Regards, Laurent