    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 * http://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019
    020package org.apache.commons.compress.utils;
    021
    022import java.util.Collections;
    023import java.util.HashSet;
    024
    025/**
    026 * Set utilities
    027 *
    028 * @since 1.13
    029 */
    030public class Sets {
    031
    032    /**
    033     * Creates a new HashSet filled with the given elements
    034     *
    035     * @param elements the elements to fill the new set
    036     * @param <E>      type of elements contained in new set
    037     * @return A new HasSet
    038     */
    039    @SafeVarargs
    040    public static <E> HashSet<E> newHashSet(final E... elements) {
    041        final HashSet<E> set = new HashSet<>(elements != null ? elements.length : 0);
    042        if (elements != null) {
    043            Collections.addAll(set, elements);
    044        }
    045        return set;
    046    }
    047
    048    private Sets() {
    049        // Do not instantiate
    050    }
    051}