| /* |
| * Copyright (c) 2015, 2017, 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. |
| */ |
| package p1; |
| |
| import myloaders.MyDiffClassLoader; |
| import p2.c2; |
| |
| public class c1ReadEdgeDiffLoader { |
| public c1ReadEdgeDiffLoader() { |
| // The goal is to establish a read edge between module m1x |
| // which is the module where p1.c1ReadEdgeDiffLoader is defined, |
| // and the unnamed module that defines p2.c2. This must be |
| // done in 2 steps: |
| // |
| // Step #1: Establish a read edge between m1x, where c1ReadEdgeDiffLoader |
| // is defined, and the System ClassLoader's unnamed module, |
| // where MyDiffClassLoader is defined. This read edge |
| // is needed before we can obtain MyDiffClassLoader.loader2's unnamed module. |
| // |
| // Step #2: Establish a read edge between m1x, where c1ReadEdgeDiffLoader |
| // is defined, and the MyDiffClassLoader.loader2's unnamed module, |
| // where p2.c2 will be defined. |
| |
| // Step #1: read edge m1x -> System ClassLoader's unnamed module |
| Module m1x = c1ReadEdgeDiffLoader.class.getModule(); |
| ClassLoader system_loader = ClassLoader.getSystemClassLoader(); |
| Module unnamed_module_one = system_loader.getUnnamedModule(); |
| m1x.addReads(unnamed_module_one); |
| |
| // Step #2: read edge m1x -> MyDiffClassLoader.loader2's unnamed module |
| ClassLoader loader2 = MyDiffClassLoader.loader2; |
| Module unnamed_module_two = loader2.getUnnamedModule(); |
| m1x.addReads(unnamed_module_two); |
| |
| // Attempt access - access should succeed since m1x can read |
| // MyDiffClassLoader.loader2's unnamed module |
| p2.c2 c2_obj = new p2.c2(); |
| c2_obj.method2(); |
| } |
| } |