author | kvn |
Mon, 09 Jul 2018 22:20:02 -0700 | |
changeset 51022 | 4df86b2a804d |
parent 50744 | 6c306d54366d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2018, 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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/** |
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* @test |
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* @requires !vm.graal.enabled |
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* @modules jdk.attach |
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* @run main/othervm --limit-modules jdk.attach -Djdk.attach.allowAttachSelf |
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* GetPackageBootLoaderChildLayer |
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* @summary Exercise Class.getPackage on a class defined to the boot loader |
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* but in a module that is in a child layer rather than the boot layer |
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*/ |
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import com.sun.tools.attach.VirtualMachine; |
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public class GetPackageBootLoaderChildLayer { |
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public static void main(String[] args) throws Exception { |
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// ensure that the java.management module is not in the boot layer |
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ModuleLayer.boot().findModule("java.management").ifPresent(m -> { |
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throw new RuntimeException("java.management loaded!!!"); |
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}); |
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// start local JMX agent via the attach mechanism |
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String vmid = "" + ProcessHandle.current().pid(); |
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VirtualMachine vm = VirtualMachine.attach(vmid); |
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vm.startLocalManagementAgent(); |
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// check layer, class loader, and Package object |
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Class<?> clazz = Class.forName("javax.management.MXBean"); |
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if (clazz.getModule().getLayer() == ModuleLayer.boot()) |
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throw new RuntimeException("Module is in boot layer!!!"); |
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ClassLoader loader = clazz.getClassLoader(); |
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if (loader != null) |
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throw new RuntimeException("Unexpected class loader: " + loader); |
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Package p = clazz.getPackage(); |
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if (!p.getName().equals("javax.management")) |
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throw new RuntimeException("Unexpected package " + p); |
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} |
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} |