public static void requireNonNulls(Object o0, Object o1, Object o2, Object o3, Object o4, Object o5, Object o6) {
        requireNonNulls(o0, o1, o2, o3, o4);
        if (o5 == null) {
            throw new NullPointerException(SIXTH_ARG_IS_NULL);
        }
        if (o6 == null) {
            throw new NullPointerException(SEVENTH_ARG_IS_NULL);
        }
    }
Checks if the provided elements all are non null. If a null is detected a
NullPointerException is thrown.

@param o0 object to check
@param o1 object to check
@param o2 object to check
@param o3 object to check
@param o4 object to check
@param o5 object to check
@param o6 object to check
@throws NullPointerException if at least one of the elements are null
common-parent/invariant/src/main/java/com/speedment/common/invariant/NullUtil.java