public static void requireNonNulls(Object o0) {
        if (o0 == null) {
            throw new NullPointerException(FIRST_ARG_IS_NULL);
        }
    }
Checks if this element is non null. If a null is detected a
NullPointerException is thrown.

@param o0 object to check
@throws NullPointerException if the element is null
common-parent/invariant/src/main/java/com/speedment/common/invariant/NullUtil.java