/* * Copyright (c) 2023, 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. */ import jdk.test.whitebox.WhiteBox; public class ResolvedReferencesWb { public static void main(String[] args) throws Exception { WhiteBox wb = WhiteBox.getWhiteBox(); if (args.length < 1) { throw new RuntimeException("Test requires arg: [true|false]"); } if (!args[0].equals("true") && !args[0].equals("false")) { throw new RuntimeException("Invalid argument: Test requires arg: [true|false]"); } ResolvedReferencesTestApp t = new ResolvedReferencesTestApp(); Object[] resolvedReferences = wb.getResolvedReferences(ResolvedReferencesTestApp.class); boolean isArchived = (args[0].equals("true")); if (resolvedReferences.length <= 0) { throw new RuntimeException("Resolved reference should not be null"); } boolean foundFoo = false; boolean foundBar = false; boolean foundQux = false; for (Object o : resolvedReferences) { if (o != null) { foundFoo |= (o.equals("fooString")); foundBar |= (o.equals("barString")); foundQux |= (o.equals("quxString")); } } if (isArchived) { // CDS eagerly resolves all the string literals in the ConstantPool. At this point, all // three strings should be in the resolvedReferences array. if (!foundFoo || !foundBar || !foundQux) { throwException(resolvedReferences, "Incorrect resolved references array, all strings should be present"); } } else { // If the class is not archived, the string literals in the ConstantPool are resolved // on-demand. At this point, ResolvedReferencesTestApp:: has been executed // so the two strings used there should be in the resolvedReferences array. // ResolvedReferencesTestApp::qux() is not executed so "quxString" // should not yet be resolved. if (!foundFoo || !foundBar || foundQux) { throwException(resolvedReferences, "Incorrect resolved references array, quxString should not be archived"); } } } static void throwException(Object[] resolvedRefs, String errMsg) throws RuntimeException { System.out.printf("Resolved References Array Length: %d\n", resolvedRefs.length); for (Object o : resolvedRefs) { System.out.println(o); } throw new RuntimeException(errMsg); } }