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