1 /*
   2  * Copyright (c) 2016, 2017, 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 /test/lib ..
  28  * @build sun.hotspot.WhiteBox
  29  * @compile/module=java.base java/lang/ModuleHelper.java
  30  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  31  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  32  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI JVMAddModuleExports
  33  */
  34 
  35 import static jdk.test.lib.Asserts.*;
  36 
  37 public class JVMAddModuleExports {
  38 
  39     public static void main(String args[]) throws Throwable {
  40         MyClassLoader from_cl = new MyClassLoader();
  41         MyClassLoader to_cl = new MyClassLoader();
  42         Module from_module, to_module;
  43 
  44         from_module = ModuleHelper.ModuleObject("from_module", from_cl, new String[] { "mypackage", "x/apackage" });
  45         assertNotNull(from_module, "Module should not be null");
  46         ModuleHelper.DefineModule(from_module, false, "9.0", "from_module/here", new String[] { "mypackage", "x/apackage" });
  47         to_module = ModuleHelper.ModuleObject("to_module", to_cl, new String[] { "yourpackage", "that/apackage" });
  48         assertNotNull(to_module, "Module should not be null");
  49         ModuleHelper.DefineModule(to_module, false, "9.0", "to_module/here", new String[] { "yourpackage", "that/apackage" });
  50 
  51         // Null from_module argument, expect an NPE
  52         try {
  53             ModuleHelper.AddModuleExports((Module)null, "mypackage", to_module);
  54             throw new RuntimeException("Failed to get the expected NPE for null from_module");
  55         } catch(NullPointerException e) {
  56             // Expected
  57         }
  58 
  59         // Null to_module argument, expect an NPE
  60         try {
  61             ModuleHelper.AddModuleExports(from_module, "mypackage", (Module)null);
  62             throw new RuntimeException("Failed to get the expected NPE for null to_module");
  63         } catch(NullPointerException e) {
  64             // Expected
  65         }
  66 
  67         // Bad from_module argument, expect an IAE
  68         try {
  69             ModuleHelper.AddModuleExports(to_cl, "mypackage", to_module);
  70             throw new RuntimeException("Failed to get the expected IAE");
  71         } catch(IllegalArgumentException e) {
  72             // Expected
  73         }
  74 
  75         // Null package argument, expect an NPE
  76         try {
  77             ModuleHelper.AddModuleExports(from_module, null, to_module);
  78             throw new RuntimeException("Failed to get the expected NPE");
  79         } catch(NullPointerException e) {
  80             // Expected
  81         }
  82 
  83         // Bad to_module argument, expect an IAE
  84         try {
  85             ModuleHelper.AddModuleExports(from_module, "mypackage", from_cl);
  86             throw new RuntimeException("Failed to get the expected IAE");
  87         } catch(IllegalArgumentException e) {
  88             // Expected
  89         }
  90 
  91         // Exporting a package to the same module
  92         ModuleHelper.AddModuleExports(from_module, "mypackage", from_module);
  93 
  94         // Export a package that does not exist to to_module
  95         try {
  96             ModuleHelper.AddModuleExports(from_module, "notmypackage", to_module);
  97             throw new RuntimeException("Failed to get the expected IAE");
  98         } catch(IllegalArgumentException e) {
  99             // Expected
 100         }
 101 
 102         // Export a package, that is not in from_module, to to_module
 103         try {
 104             ModuleHelper.AddModuleExports(from_module, "yourpackage", to_module);
 105             throw new RuntimeException("Failed to get the expected IAE");
 106         } catch(IllegalArgumentException e) {
 107             // Expected
 108         }
 109 
 110         // Export a package, that does not exist, to from_module
 111         try {
 112             ModuleHelper.AddModuleExports(from_module, "notmypackage", from_module);
 113             throw new RuntimeException("Failed to get the expected IAE");
 114         } catch(IllegalArgumentException e) {
 115             // Expected
 116         }
 117 
 118         // Export a package, that is not in from_module, to from_module
 119         try {
 120             ModuleHelper.AddModuleExports(from_module, "that/apackage", from_module);
 121             throw new RuntimeException("Failed to get the expected IAE");
 122         } catch(IllegalArgumentException e) {
 123             // Expected
 124         }
 125 
 126         // Export the same package twice to the same module
 127         ModuleHelper.AddModuleExports(from_module, "x/apackage", to_module);
 128         ModuleHelper.AddModuleExports(from_module, "x/apackage", to_module);
 129 
 130         // Export the same package, using '.' instead of '/'
 131         ModuleHelper.AddModuleExports(from_module, "x.apackage", to_module);
 132 
 133         // Export a package to the unnamed module and then to a specific module.
 134         // The qualified export should be ignored.
 135         ModuleHelper.AddModuleExportsToAll(to_module, "that/apackage");
 136         ModuleHelper.AddModuleExports(to_module, "that/apackage", from_module);
 137     }
 138 
 139     static class MyClassLoader extends ClassLoader { }
 140 }