--- old/src/java.base/share/classes/java/util/JumboEnumSet.java 2018-09-28 11:29:36.513908797 +0700 +++ new/src/java.base/share/classes/java/util/JumboEnumSet.java 2018-09-28 11:29:36.081908797 +0700 @@ -41,7 +41,7 @@ * element of this array represents the presence of universe[64*j +i] * in this set. */ - private long elements[]; + private long[] elements; // Redundant - maintained for performance private int size = 0;