1 /* 2 * Copyright (c) 2010, 2017, 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 4786884 26 * @summary Ensure that passing the empty string to Charset methods and 27 * constructors causes an IllegalArgumentException to be thrown 28 */ 29 package test.java.nio.charset.Charset; 30 31 import java.io.*; 32 import java.nio.*; 33 import java.nio.charset.*; 34 35 36 public class EmptyCharsetName { 37 38 static abstract class Test { 39 go()40 public abstract void go() throws Exception; 41 Test()42 Test() throws Exception { 43 try { 44 go(); 45 } catch (Exception x) { 46 if (x instanceof IllegalCharsetNameException) { 47 System.err.println("Thrown as expected: " + x); 48 return; 49 } 50 throw new Exception("Incorrect exception: " 51 + x.getClass().getName(), 52 x); 53 } 54 throw new Exception("No exception thrown"); 55 } 56 57 } 58 main(String[] args)59 public static void main(String[] args) throws Exception { 60 61 new Test() { 62 public void go() throws Exception { 63 Charset.forName(""); 64 }}; 65 new Test() { 66 public void go() throws Exception { 67 Charset.isSupported(""); 68 }}; 69 new Test() { 70 public void go() throws Exception { 71 new Charset("", new String[] { }) { 72 public CharsetDecoder newDecoder() { 73 return null; 74 } 75 public CharsetEncoder newEncoder() { 76 return null; 77 } 78 public boolean contains(Charset cs) { 79 return false; 80 } 81 }; 82 }}; 83 } 84 85 } 86