SetUtils.java

/**
 * Copyright 2005-2014 Restlet
 * 
 * The contents of this file are subject to the terms of one of the following
 * open source licenses: Apache 2.0 or or EPL 1.0 (the "Licenses"). You can
 * select the license that you prefer but you may not use this file except in
 * compliance with one of these Licenses.
 * 
 * You can obtain a copy of the Apache 2.0 license at
 * http://www.opensource.org/licenses/apache-2.0
 * 
 * You can obtain a copy of the EPL 1.0 license at
 * http://www.opensource.org/licenses/eclipse-1.0
 * 
 * See the Licenses for the specific language governing permissions and
 * limitations under the Licenses.
 * 
 * Alternatively, you can obtain a royalty free commercial license with less
 * limitations, transferable or non-transferable, directly at
 * http://restlet.com/products/restlet-framework
 * 
 * Restlet is a registered trademark of Restlet S.A.S.
 */

package org.restlet.engine.util;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * Utilities for manipulation of {@link Set}.
 * 
 * @author Manuel Boillod
 */
public class SetUtils {

    // [ifndef gwt] method
    /**
     * Returns a new {@link java.util.HashSet} with the given elements
     * 
     * @param elements
     *            The elements
     * @return A new {@link java.util.HashSet} with the given elements
     */
    @SafeVarargs
    public static <E> Set<E> newHashSet(E... elements) {
        HashSet<E> set = new HashSet<>(elements.length);
        Collections.addAll(set, elements);
        return set;
    }

}