| /* |
| * Copyright (c) 2008, 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. |
| * |
| * 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. |
| */ |
| |
| /* @test |
| @bug 5066863 5066867 5066874 5066879 5066884 5066887 5065777 6730652 |
| @summary canEncode() false iff encode() throws CharacterCodingException |
| @run main/timeout=1200 FindCanEncodeBugs |
| @author Martin Buchholz |
| */ |
| |
| import java.util.*; |
| import java.nio.charset.*; |
| import java.nio.*; |
| |
| public class FindCanEncodeBugs { |
| static boolean encodable1(CharsetEncoder enc, char c) { |
| enc.reset(); |
| return enc.canEncode(c); |
| } |
| |
| static boolean encodable2(CharsetEncoder enc, char c) { |
| enc.reset(); |
| try { enc.encode(CharBuffer.wrap(new char[]{c})); return true; } |
| catch (CharacterCodingException e) { return false; } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| int failures = 0; |
| |
| for (Map.Entry<String,Charset> e |
| : Charset.availableCharsets().entrySet()) { |
| String csn = e.getKey(); |
| Charset cs = e.getValue(); |
| |
| if (! cs.canEncode() || csn.matches("x-COMPOUND_TEXT")) |
| continue; |
| |
| //System.out.println(csn); |
| |
| CharsetEncoder enc = cs.newEncoder(); |
| |
| for (int i = Character.MIN_VALUE; i <= Character.MAX_VALUE; i++) { |
| boolean encodable1 = encodable1(enc, (char)i); |
| boolean encodable2 = encodable2(enc, (char)i); |
| if (encodable1 != encodable2) { |
| int start = i; |
| int end = i; |
| for (int j = i; |
| j <= '\uffff' && |
| encodable1(enc, (char)j) == encodable1 && |
| encodable2(enc, (char)j) == encodable2; |
| j++) |
| end = j; |
| System.out.printf("charset=%-18s canEncode=%-5b ", |
| csn, encodable1); |
| if (start == end) |
| System.out.printf("\'\\u%04x\'%n", start); |
| else |
| System.out.printf("\'\\u%04x\' - \'\\u%04x\'%n", |
| start, end); |
| i = end; |
| failures++; |
| } |
| } |
| } |
| |
| if (failures > 0) |
| throw new Exception(failures + " failures"); |
| } |
| } |