| /* |
| * Copyright (c) 2011, 2014, 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 4884238 |
| * @summary Test standard charset name constants. |
| * @author Mike Duigou |
| * @run main Standard |
| */ |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import java.io.*; |
| import java.nio.charset.*; |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| public class Standard { |
| |
| private final static String standardCharsets[] = { |
| "US-ASCII", "ISO-8859-1", "UTF-8", |
| "UTF-16BE", "UTF-16LE", "UTF-16" }; |
| |
| public static void realMain(String[] args) { |
| check(StandardCharsets.US_ASCII instanceof Charset); |
| check(StandardCharsets.ISO_8859_1 instanceof Charset); |
| check(StandardCharsets.UTF_8 instanceof Charset); |
| check(StandardCharsets.UTF_16BE instanceof Charset); |
| check(StandardCharsets.UTF_16LE instanceof Charset); |
| check(StandardCharsets.UTF_16 instanceof Charset); |
| |
| check("US-ASCII".equals(StandardCharsets.US_ASCII.name())); |
| check("ISO-8859-1".equals(StandardCharsets.ISO_8859_1.name())); |
| check("UTF-8".equals(StandardCharsets.UTF_8.name())); |
| check("UTF-16BE".equals(StandardCharsets.UTF_16BE.name())); |
| check("UTF-16LE".equals(StandardCharsets.UTF_16LE.name())); |
| check("UTF-16".equals(StandardCharsets.UTF_16.name())); |
| |
| Set<String> charsets = new HashSet<>(); |
| Field standardCharsetFields[] = StandardCharsets.class.getFields(); |
| |
| for(Field charsetField : standardCharsetFields) { |
| check(StandardCharsets.class == charsetField.getDeclaringClass()); |
| check(Modifier.isFinal(charsetField.getModifiers())); |
| check(Modifier.isStatic(charsetField.getModifiers())); |
| check(Modifier.isPublic(charsetField.getModifiers())); |
| Object value; |
| try { |
| value = charsetField.get(null); |
| } catch(IllegalAccessException failure) { |
| unexpected(failure); |
| continue; |
| } |
| check(value instanceof Charset); |
| charsets.add(((Charset)value).name()); |
| } |
| |
| check(charsets.containsAll(Arrays.asList(standardCharsets))); |
| charsets.removeAll(Arrays.asList(standardCharsets)); |
| check(charsets.isEmpty()); |
| } |
| |
| //--------------------- Infrastructure --------------------------- |
| static volatile int passed = 0, failed = 0; |
| static void pass() { passed++; } |
| static void fail() { failed++; Thread.dumpStack(); } |
| static void fail(String msg) { System.out.println(msg); fail(); } |
| static void unexpected(Throwable t) { failed++; t.printStackTrace(); } |
| static void check(boolean cond) { if (cond) pass(); else fail(); } |
| static void equal(Object x, Object y) { |
| if (x == null ? y == null : x.equals(y)) pass(); |
| else {System.out.println(x + " not equal to " + y); fail();}} |
| static void equal2(Object x, Object y) {equal(x, y); equal(y, x);} |
| public static void main(String[] args) throws Throwable { |
| try { realMain(args); } catch (Throwable t) { unexpected(t); } |
| |
| System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
| if (failed > 0) throw new Exception("Some tests failed"); |
| } |
| static byte[] serializedForm(Object obj) { |
| try { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| new ObjectOutputStream(baos).writeObject(obj); |
| return baos.toByteArray(); |
| } catch (IOException e) { throw new Error(e); }} |
| static Object readObject(byte[] bytes) |
| throws IOException, ClassNotFoundException { |
| InputStream is = new ByteArrayInputStream(bytes); |
| return new ObjectInputStream(is).readObject();} |
| @SuppressWarnings("unchecked") |
| static <T> T serialClone(T obj) { |
| try { return (T) readObject(serializedForm(obj)); } |
| catch (Exception e) { throw new Error(e); }} |
| |
| } |