I have the following Java code which I want to migrate to latest Java code:

package com.mapr.org.apache.hadoop.hbase.util.CollectionUtils 
.....
if (CollectionUtils.notEmpty(users)) {
      ....
}

Content of CollectionUtils from old mapr maven dependency:

package com.mapr.org.apache.hadoop.hbase.util;

public class CollectionUtils {
    private static final List<Object> EMPTY_LIST = Collections.unmodifiableList(new ArrayList(0));

    public CollectionUtils() {
    }

    .....

    public static <A, B> boolean nullSafeSameSize(Collection<A> a, Collection<B> b) {
        return nullSafeSize(a) == nullSafeSize(b);
    }

    public static <T> boolean isEmpty(Collection<T> collection) {
        return collection == null || collection.isEmpty();
    }

    public static <T> boolean notEmpty(Collection<T> collection) {
        return !isEmpty(collection);
    }

    public static <T> T getFirst(Collection<T> collection) {
        if (isEmpty(collection)) {
            return null;
        } else {
            Iterator var1 = collection.iterator();
            if (var1.hasNext()) {
                T t = var1.next();
                return t;
            } else {
                return null;
            }
        }
    }

    public static int getLastIndex(List<?> list) {
        return isEmpty(list) ? -1 : list.size() - 1;
    }

    public static boolean isLastIndex(List<?> list, int index) {
        return index == getLastIndex(list);
    }

    public static <T> T getLast(List<T> list) {
        return isEmpty(list) ? null : list.get(list.size() - 1);
    }
}

Do you know how I can migrate CollectionUtils.notEmpty(....) to latest Java version?
I want to remove hadoop dependency form the project.