120 lines
5.0 KiB
Java
120 lines
5.0 KiB
Java
/*
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* Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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import sun.hotspot.WhiteBox;
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//
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// Help test archived box cache consistency.
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//
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// Takes two arguments:
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// 0: the expected maximum value expected to be archived
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// 1: if the values are expected to be retrieved from the archive or not
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// (only applies to IntegerCache; other caches should always be mapped
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// from archive)
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//
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public class CheckIntegerCacheApp {
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static WhiteBox wb;
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public static void main(String[] args) throws Exception {
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wb = WhiteBox.getWhiteBox();
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if (!wb.areOpenArchiveHeapObjectsMapped()) {
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System.out.println("This may happen during normal operation. Test Skipped.");
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return;
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}
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if (args.length != 2) {
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throw new RuntimeException(
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"FAILED. Incorrect argument length: " + args.length);
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}
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boolean archivedExpected = Boolean.parseBoolean(args[1]);
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// Base JLS compliance check
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for (int i = -128; i <= 127; i++) {
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if (Integer.valueOf(i) != Integer.valueOf(i)) {
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throw new RuntimeException(
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"FAILED. All values in range [-128, 127] should be interned in cache: " + i);
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}
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if (Byte.valueOf((byte)i) != Byte.valueOf((byte)i)) {
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throw new RuntimeException(
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"FAILED. All Byte values in range [-128, 127] should be interned in cache: " + (byte)i);
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}
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if (Short.valueOf((short)i) != Short.valueOf((short)i)) {
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throw new RuntimeException(
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"FAILED. All Short values in range [-128, 127] should be interned in cache: " + (byte)i);
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}
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if (Long.valueOf(i) != Long.valueOf(i)) {
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throw new RuntimeException(
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"FAILED. All Long values in range [-128, 127] should be interned in cache: " + i);
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}
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checkArchivedAsExpected(archivedExpected, Integer.valueOf(i));
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checkArchivedAsExpected(true, Byte.valueOf((byte)i));
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checkArchivedAsExpected(true, Short.valueOf((short)i));
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checkArchivedAsExpected(true, Long.valueOf(i));
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// Character cache only values 0 through 127
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if (i >= 0) {
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if (Character.valueOf((char)i) != Character.valueOf((char)i)) {
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throw new RuntimeException(
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"FAILED. All Character values in range [0, 127] should be interned in cache: " + i);
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}
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checkArchivedAsExpected(true, Character.valueOf((char)i));
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}
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}
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int high = Integer.parseInt(args[0]);
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if (Integer.valueOf(high) != Integer.valueOf(high)) {
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throw new RuntimeException(
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"FAILED. Value expected to be retrieved from cache: " + high);
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}
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checkArchivedAsExpected(archivedExpected, Integer.valueOf(high));
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if (Integer.valueOf(high + 1) == Integer.valueOf(high + 1)) {
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throw new RuntimeException(
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"FAILED. Value not expected to be retrieved from cache: " + high);
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}
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checkArchivedAsExpected(false, Integer.valueOf(high + 1));
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checkArchivedAsExpected(false, Short.valueOf((short)128));
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checkArchivedAsExpected(false, Long.valueOf(128));
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checkArchivedAsExpected(false, Character.valueOf((char)128));
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}
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private static void checkArchivedAsExpected(boolean archivedExpected, Object value) {
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if (archivedExpected) {
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if (!wb.isShared(value)) {
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throw new RuntimeException(
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"FAILED. Value expected to be archived: " + value +
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" of type " + value.getClass().getName());
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}
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} else {
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if (wb.isShared(value)) {
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throw new RuntimeException(
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"FAILED. Value not expected to be archived: " + value +
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" of type " + value.getClass().getName());
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}
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}
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}
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}
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