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 
  24 /*
  25  * @test
  26  * @modules java.base/jdk.internal.misc
  27  * @library /testlibrary /test/lib /compiler/whitebox ..
  28  * @build sun.hotspot.WhiteBox
  29  * @compile/module=java.base java/lang/reflect/ModuleHelper.java
  30  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  31  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  32  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI JVMAddModuleExports
  33  */
  34 
  35 import java.lang.reflect.Module;
  36 import static jdk.test.lib.Asserts.*;
  37 
  38 public class JVMAddModuleExports {
  39 
  40     public static void main(String args[]) throws Throwable {
  41         MyClassLoader from_cl = new MyClassLoader();
  42         MyClassLoader to_cl = new MyClassLoader();
  43         Module from_module, to_module;
  44 
  45         from_module = ModuleHelper.ModuleObject("from_module", from_cl, new String[] { "mypackage", "this/package" });
  46         assertNotNull(from_module, "Module should not be null");
  47         ModuleHelper.DefineModule(from_module, "9.0", "from_module/here", new String[] { "mypackage", "this/package" });
  48         to_module = ModuleHelper.ModuleObject("to_module", to_cl, new String[] { "yourpackage", "that/package" });
  49         assertNotNull(to_module, "Module should not be null");
  50         ModuleHelper.DefineModule(to_module, "9.0", "to_module/here", new String[] { "yourpackage", "that/package" });
  51 
  52         // Null from_module argument, expect an NPE
  53         try {
  54             ModuleHelper.AddModuleExports((Module)null, "mypackage", to_module);
  55             throw new RuntimeException("Failed to get the expected NPE for null from_module");
  56         } catch(NullPointerException e) {
  57             // Expected
  58         }
  59 
  60         // Null to_module argument, expect an NPE
  61         try {
  62             ModuleHelper.AddModuleExports(from_module, "mypackage", (Module)null);
  63             throw new RuntimeException("Failed to get the expected NPE for null to_module");
  64         } catch(NullPointerException e) {
  65             // Expected
  66         }
  67 
  68         // Bad from_module argument, expect an IAE
  69         try {
  70             ModuleHelper.AddModuleExports(to_cl, "mypackage", to_module);
  71             throw new RuntimeException("Failed to get the expected IAE");
  72         } catch(IllegalArgumentException e) {
  73             // Expected
  74         }
  75 
  76         // Null package argument, expect an NPE
  77         try {
  78             ModuleHelper.AddModuleExports(from_module, null, to_module);
  79             throw new RuntimeException("Failed to get the expected NPE");
  80         } catch(NullPointerException e) {
  81             // Expected
  82         }
  83 
  84         // Bad to_module argument, expect an IAE
  85         try {
  86             ModuleHelper.AddModuleExports(from_module, "mypackage", from_cl);
  87             throw new RuntimeException("Failed to get the expected IAE");
  88         } catch(IllegalArgumentException e) {
  89             // Expected
  90         }
  91 
  92         // Exporting a package to the same module
  93         ModuleHelper.AddModuleExports(from_module, "mypackage", from_module);
  94 
  95         // Export a package that does not exist to to_module
  96         try {
  97             ModuleHelper.AddModuleExports(from_module, "notmypackage", to_module);
  98             throw new RuntimeException("Failed to get the expected IAE");
  99         } catch(IllegalArgumentException e) {
 100             // Expected
 101         }
 102 
 103         // Export a package, that is not in from_module, to to_module
 104         try {
 105             ModuleHelper.AddModuleExports(from_module, "yourpackage", to_module);
 106             throw new RuntimeException("Failed to get the expected IAE");
 107         } catch(IllegalArgumentException e) {
 108             // Expected
 109         }
 110 
 111         // Export a package, that does not exist, to from_module
 112         try {
 113             ModuleHelper.AddModuleExports(from_module, "notmypackage", from_module);
 114             throw new RuntimeException("Failed to get the expected IAE");
 115         } catch(IllegalArgumentException e) {
 116             // Expected
 117         }
 118 
 119         // Export a package, that is not in from_module, to from_module
 120         try {
 121             ModuleHelper.AddModuleExports(from_module, "that/package", from_module);
 122             throw new RuntimeException("Failed to get the expected IAE");
 123         } catch(IllegalArgumentException e) {
 124             // Expected
 125         }
 126 
 127         // Export the same package twice to the same module
 128         ModuleHelper.AddModuleExports(from_module, "this/package", to_module);
 129         ModuleHelper.AddModuleExports(from_module, "this/package", to_module);
 130 
 131         // Export a package, using '.' instead of '/'
 132         try {
 133             ModuleHelper.AddModuleExports(from_module, "this.package", to_module);
 134             throw new RuntimeException("Failed to get the expected IAE");
 135         } catch(IllegalArgumentException e) {
 136             // Expected
 137         }
 138 
 139         // Export a package to the unnamed module and then to a specific module.
 140         // The qualified export should be ignored.
 141         ModuleHelper.AddModuleExportsToAll(to_module, "that/package");
 142         ModuleHelper.AddModuleExports(to_module, "that/package", from_module);
 143     }
 144 
 145     static class MyClassLoader extends ClassLoader { }
 146 }