    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017package org.apache.commons.net.util;
    018
    019import java.security.cert.X509Certificate;
    020
    021/**
    022 * Constants provided as public only for our own implementation, you can consider this private for now.
    023 *
    024 * @since 3.8.0
    025 */
    026public class NetConstants {
    027
    028    /**
    029     * An empty immutable {@code String} array.
    030     */
    031    public static final String[] EMPTY_STRING_ARRAY = {};
    032
    033    /**
    034     * An empty immutable {@code byte} array.
    035     */
    036    public static final byte[] EMPTY_BTYE_ARRAY = {};
    037
    038    /**
    039     * An empty immutable {link X509Certificate} array.
    040     */
    041    public static final X509Certificate[] EMPTY_X509_CERTIFICATE_ARRAY = {};
    042
    043    /**
    044     * The index value when the end of the stream has been reached {@code -1}.
    045     *
    046     * @since 3.9.0
    047     */
    048    public static final int EOS = -1;
    049
    050    /**
    051     * Prevents instantiation.
    052     */
    053    private NetConstants() {
    054    }
    055}