| /* |
| * Copyright (c) 2016, 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. |
| */ |
| |
| /* |
| * @test |
| * @modules java.base/jdk.internal.misc |
| * @library /test/lib .. |
| * @build sun.hotspot.WhiteBox |
| * @compile/module=java.base java/lang/ModuleHelper.java |
| * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI JVMAddReadsModule |
| */ |
| |
| import static jdk.test.lib.Asserts.*; |
| |
| public class JVMAddReadsModule { |
| |
| public static void main(String args[]) throws Throwable { |
| MyClassLoader from_cl = new MyClassLoader(); |
| MyClassLoader to_cl = new MyClassLoader(); |
| Object from_module, to_module; |
| |
| from_module = ModuleHelper.ModuleObject("from_module", from_cl, new String[] { "mypackage" }); |
| assertNotNull(from_module, "Module should not be null"); |
| ModuleHelper.DefineModule(from_module, false, "9.0", "from_module/here", new String[] { "mypackage" }); |
| |
| to_module = ModuleHelper.ModuleObject("to_module", to_cl, new String[] { "yourpackage" }); |
| assertNotNull(to_module, "Module should not be null"); |
| ModuleHelper.DefineModule(to_module, false, "9.0", "to_module/here", new String[] { "yourpackage" }); |
| |
| // Null from_module argument, expect NPE |
| try { |
| ModuleHelper.AddReadsModule(null, to_module); |
| throw new RuntimeException("Failed to get the expected NPE"); |
| } catch (NullPointerException e) { |
| // Expected |
| } |
| |
| // Null to_module argument, expect NPE |
| try { |
| ModuleHelper.AddReadsModule(from_module, null); |
| throw new RuntimeException("Unexpected NPE was thrown"); |
| } catch (NullPointerException e) { |
| // Expected |
| } |
| |
| // Null from_module and to_module arguments, expect NPE |
| try { |
| ModuleHelper.AddReadsModule(null, null); |
| throw new RuntimeException("Failed to get the expected NPE"); |
| } catch (NullPointerException e) { |
| // Expected |
| } |
| |
| // Both modules are the same, should not throw an exception |
| ModuleHelper.AddReadsModule(from_module, from_module); |
| |
| // Duplicate calls, should not throw an exception |
| ModuleHelper.AddReadsModule(from_module, to_module); |
| ModuleHelper.AddReadsModule(from_module, to_module); |
| } |
| |
| static class MyClassLoader extends ClassLoader { } |
| } |