1/* 2 * Copyright (c) 2016, 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 24package p3; 25 26import java.security.AccessControlException; 27import java.security.Permission; 28 29/** 30 * Verify RuntimePermission("getClassLoader") is needed to load 31 * a class in another module 32 */ 33public class NoGetClassLoaderAccess { 34 private static final Module m3 = NoGetClassLoaderAccess.class.getModule(); 35 private static final Permission GET_CLASSLOADER_PERMISSION = new RuntimePermission("getClassLoader"); 36 37 public static void main(String[] args) throws Exception { 38 ModuleLayer boot = ModuleLayer.boot(); 39 40 System.setSecurityManager(new SecurityManager()); 41 Module m1 = boot.findModule("m1").get(); 42 Module m2 = boot.findModule("m2").get(); 43 findClass(m1, "p1.A"); 44 findClass(m1, "p1.internal.B"); 45 findClass(m2, "p2.C"); 46 findClass(m3, "p3.internal.Foo"); 47 } 48 49 static Class<?> findClass(Module module, String cn) { 50 try { 51 Class<?> c = Class.forName(module, cn); 52 if (c == null) { 53 throw new RuntimeException(cn + " not found in " + module); 54 } 55 if (c.getModule() != module) { 56 throw new RuntimeException(c.getModule() + " != " + module); 57 } 58 return c; 59 } catch (AccessControlException e) { 60 if (module != m3) { 61 if (e.getPermission().equals(GET_CLASSLOADER_PERMISSION)) 62 return null; 63 } 64 throw e; 65 } 66 } 67} 68