Class com.google.common.primitives.Longs

Added Methods
void rotate(long[], int)	Performs a right rotation of {@code array} of "distance" places, so that the first element is moved to index "distance", and the element at index {@code i} ends up at index {@code (distance + i) mod array.length}.
void rotate(long[], int, int, int)	Performs a right rotation of {@code array} between {@code fromIndex} inclusive and {@code toIndex} exclusive.