65 lines
2.6 KiB
Java
65 lines
2.6 KiB
Java
/*
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* Copyright (c) 2018, 2022, 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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* @test Default CDS archive
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* @summary Sharing should be enabled by default on supported platform/binaries.
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* No -Xshare:dump is needed. No -Xshare:auto or -Xshare:on in needed.
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* Verify a set of well-known shared classes.
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* @requires vm.cds
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* @library /test/lib
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
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* -XX:+WhiteBoxAPI CheckSharingWithDefaultArchive -showversion
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*/
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import jdk.test.lib.Platform;
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import jtreg.SkippedException;
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import jdk.test.whitebox.WhiteBox;
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public class CheckSharingWithDefaultArchive {
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public static void main(String[] args) throws Exception {
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if (!Platform.isDefaultCDSArchiveSupported()) {
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throw new SkippedException("Supported platform");
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}
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WhiteBox wb = WhiteBox.getWhiteBox();
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String classes[] = {"java.lang.Object",
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"java.lang.String",
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"java.lang.Class"};
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// If maping fails, sharing is disabled
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if (wb.isSharingEnabled()) {
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for (int i = 0; i < classes.length; i++) {
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Class c = Class.forName(classes[i]);
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if (wb.isSharedClass(c)) {
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System.out.println(classes[i] + " is shared.");
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} else {
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throw new RuntimeException(classes[i] + " is not shared");
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}
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}
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} else {
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throw new SkippedException("Sharing is not enabled.");
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}
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}
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}
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