1 /* 2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 6330020 26 * @summary Ensure Charset.forName/isSupport throws the correct exception 27 * if the charset names passed in are illegal. 28 */ 29 30 import java.nio.charset.*; 31 32 public class IllegalCharsetName { 33 public static void main(String[] args) throws Exception { 34 String[] illegalNames = { 35 ".", 36 "_", 37 ":", 38 "-", 39 ".name", 40 "_name", 41 ":name", 42 "-name", 43 "name*name", 44 "name?name" 45 }; 46 for (int i = 0; i < illegalNames.length; i++) { 47 try { 48 Charset.forName(illegalNames[i]); 49 throw new Exception("Charset.forName(): No exception thrown"); 50 } catch (IllegalCharsetNameException x) { //expected 51 } 52 53 try { 54 Charset.isSupported(illegalNames[i]); 55 throw new Exception("Charset.isSupported(): No exception thrown"); 56 } catch (IllegalCharsetNameException x) { //expected 57 } 58 } 59 60 // Standard charsets may bypass alias checking during startup, test that 61 // they're all well-behaved as a sanity test 62 checkAliases(StandardCharsets.ISO_8859_1); 63 checkAliases(StandardCharsets.US_ASCII); 64 checkAliases(StandardCharsets.UTF_8); 65 } 66 67 private static void checkAliases(Charset cs) { 68 for (String alias : cs.aliases()) { 69 Charset.forName(alias); 70 Charset.isSupported(alias); 71 } 72 } 73 }