/* * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.net.ssl; import java.util.*; import java.security.KeyStore.*; /** * A parameters object for X509KeyManagers that encapsulates a List * of KeyStore.Builders. * * @see java.security.KeyStore.Builder * @see X509KeyManager * * @author  Andreas Sterbenz * @since   1.5 */public class KeyStoreBuilderParameters implements ManagerFactoryParameters {     private final List<Builder> parameters;     /**     * Construct new KeyStoreBuilderParameters from the specified     * {@linkplain java.security.KeyStore.Builder}.     *     * @param builder the Builder object     * @exception NullPointerException if builder is null     */    public KeyStoreBuilderParameters(Builder builder) {        parameters = Collections.singletonList(Objects.requireNonNull(builder));    }     /**     * Construct new KeyStoreBuilderParameters from a List     * of {@linkplain java.security.KeyStore.Builder}s. Note that the list     * is cloned to protect against subsequent modification.     *     * @param parameters the List of Builder objects     * @exception NullPointerException if parameters is null     * @exception IllegalArgumentException if parameters is an empty list     */    public KeyStoreBuilderParameters(List<Builder> parameters) {        if (parameters.isEmpty()) {            throw new IllegalArgumentException();        }         this.parameters = Collections.unmodifiableList(            new ArrayList<Builder>(parameters));    }     /**     * Return the unmodifiable List of the     * {@linkplain java.security.KeyStore.Builder}s     * encapsulated by this object.     *     * @return the unmodifiable List of the     * {@linkplain java.security.KeyStore.Builder}s     * encapsulated by this object.     */    public List<Builder> getParameters() {        return parameters;    } }