| /* |
| * Copyright (c) 2004, 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 4990346 |
| * @summary Verify autoboxed values are cached as required. |
| * @author Joseph D. Darcy |
| */ |
| |
| public class BoxingCaching { |
| |
| static boolean verifyBooleanCaching() { |
| boolean cached = true; |
| |
| Boolean results[] = new Boolean[2]; |
| |
| results[0] = false; |
| results[1] = true; |
| |
| Boolean B; |
| |
| B = false; |
| if (B != results[0]) { |
| cached = false; |
| System.err.println("Boolean value " + B + |
| " is not cached appropriately."); |
| } |
| |
| B = true; |
| if (B != results[1]) { |
| cached = false; |
| System.err.println("Boolean value " + B + |
| " is not cached appropriately."); |
| } |
| |
| return cached; |
| } |
| |
| static boolean verifyByteCaching() { |
| boolean cached = true; |
| |
| Byte results[] = new Byte[-(-128) + 127 +1]; |
| for(int i = 0; i < results.length; i++) |
| results[i] = (byte)(i-128); |
| |
| for(int i = 0; i < results.length; i++) { |
| Byte B = (byte)(i-128); |
| if (B != results[i]) { |
| cached = false; |
| System.err.println("Byte value " + B + |
| " is not cached appropriately."); |
| } |
| } |
| |
| for(int i = Byte.MIN_VALUE; i < Byte.MAX_VALUE; i++) { |
| Byte B; |
| B = (byte)i; |
| if (B.byteValue() != i) { |
| cached = false; |
| System.err.println("Erroneous autoboxing conversion for " + |
| "byte value " + i + " ."); |
| } |
| } |
| |
| return cached; |
| } |
| |
| static boolean verifyCharacterCaching() { |
| boolean cached = true; |
| |
| Character results[] = new Character[127 +1]; |
| for(int i = 0; i < results.length; i++) |
| results[i] = (char)i; |
| |
| for(int i = 0; i < results.length; i++) { |
| Character C = (char)i; |
| if (C != results[i]) { |
| cached = false; |
| System.err.println("Char value " + C + |
| " is not cached appropriately."); |
| } |
| } |
| |
| for(int i = Character.MIN_VALUE; i < Character.MAX_VALUE; i++) { |
| Character C; |
| C = (char)i; |
| if (C.charValue() != i) { |
| cached = false; |
| System.err.println("Erroneous autoboxing conversion for " + |
| "char value " + i + " ."); |
| } |
| } |
| |
| return cached; |
| } |
| |
| static boolean verifyIntegerCaching() { |
| boolean cached = true; |
| |
| Integer results[] = new Integer[-(-128) + 127 +1]; |
| for(int i = 0; i < results.length; i++) |
| results[i] = (i-128); |
| |
| for(int i = 0; i < results.length; i++) { |
| Integer I = (i-128); |
| if (I != results[i]) { |
| cached = false; |
| System.err.println("Integer value " + I + |
| " is not cached appropriately."); |
| } |
| } |
| |
| for(int i = -256; i < 255; i++) { |
| Integer I; |
| I = i; |
| if (I.intValue() != i) { |
| cached = false; |
| System.err.println("Erroneous autoboxing conversion for " + |
| "int value " + i + " ."); |
| } |
| } |
| |
| return cached; |
| } |
| |
| static boolean verifyLongCaching() { |
| boolean cached = true; |
| |
| Long results[] = new Long[-(-128) + 127 +1]; |
| for(int i = 0; i < results.length; i++) |
| results[i] = (long)(i-128); |
| |
| for(int i = 0; i < results.length; i++) { |
| Long L = (long)(i-128); |
| if (L != results[i]) { |
| cached = false; |
| System.err.println("Integer value " + L + |
| " is not cached appropriately."); |
| } |
| } |
| |
| for(int i = -256; i < 255; i++) { |
| Integer L; |
| L = i; |
| if (L.longValue() != i) { |
| cached = false; |
| System.err.println("Erroneous autoboxing conversion for " + |
| "int value " + i + " ."); |
| } |
| } |
| |
| return cached; |
| } |
| |
| static boolean verifyShortCaching() { |
| boolean cached = true; |
| |
| Short results[] = new Short[-(-128) + 127 +1]; |
| for(int i = 0; i < results.length; i++) |
| results[i] = (short)(i-128); |
| |
| for(int i = 0; i < results.length; i++) { |
| Short S = (short)(i-128); |
| if (S != results[i]) { |
| cached = false; |
| System.err.println("Short value " + S + |
| " is not cached appropriately."); |
| } |
| } |
| |
| for(int i = Short.MIN_VALUE; i < Short.MAX_VALUE; i++) { |
| Short S; |
| S = (short)i; |
| if (S.shortValue() != i) { |
| cached = false; |
| System.err.println("Erroneous autoboxing conversion for " + |
| "short value " + i + " ."); |
| } |
| } |
| |
| return cached; |
| } |
| |
| public static void main(String argv[]) { |
| boolean cached = true; |
| |
| cached &= verifyBooleanCaching(); |
| cached &= verifyByteCaching(); |
| cached &= verifyCharacterCaching(); |
| cached &= verifyIntegerCaching(); |
| cached &= verifyLongCaching(); |
| cached &= verifyShortCaching(); |
| |
| if (!cached) |
| throw new RuntimeException("Values not cached appropriately."); |
| } |
| } |