1 /* 2 * Copyright (c) 2018, 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 import jdk.internal.util.SystemProps.Raw; 25 26 import org.testng.Assert; 27 import org.testng.annotations.Test; 28 29 import java.lang.reflect.Field; 30 import java.lang.reflect.Modifier; 31 32 33 /* 34 * @test 35 * @summary Test to verify that the SystemProps.Raw _xxx_NDX indices are unique and without gaps. 36 * @modules java.base/jdk.internal.util:+open 37 * @run testng VerifyRawIndexesTest 38 */ 39 40 @Test 41 public class VerifyRawIndexesTest { 42 43 /** 44 * Check that the Raw._*_NDX indexes are sequential and followed by 45 * the FIXED_LENGTH value. 46 * It verifies there there are no gaps or duplication in the declarations. 47 */ 48 @Test verifyIndexes()49 void verifyIndexes() { 50 Field[] fields = Raw.class.getDeclaredFields(); 51 int expectedModifiers = Modifier.PRIVATE | Modifier.STATIC | Modifier.FINAL; 52 53 int next = 0; // indexes start at zero 54 int fixedLength = -1; 55 for (Field f : fields) { 56 try { 57 int mods = f.getModifiers(); 58 String name = f.getName(); 59 if (((mods & expectedModifiers) == expectedModifiers) && 60 (name.endsWith("_NDX") || name.equals("FIXED_LENGTH"))) { 61 f.setAccessible(true); 62 int ndx = f.getInt(null); 63 System.out.printf("%s: %s%n", name, ndx); 64 Assert.assertEquals(ndx, next, "index value wrong"); 65 if (name.equals("FIXED_LENGTH")) { 66 fixedLength = next; // remember for final check 67 } 68 next++; 69 } else { 70 System.out.printf("Ignoring field: " + f); 71 } 72 } catch (IllegalAccessException iae) { 73 Assert.fail("unexpected exception", iae); 74 } 75 } 76 Assert.assertEquals(next - 1, fixedLength, 77 "FIXED_LENGTH should be 1 greater than max of _NDX indexes"); 78 } 79 } 80