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/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 JVMDefineModule
  33  */
  34 
  35 import static jdk.test.lib.Asserts.*;
  36 import java.sql.Time;
  37 
  38 public class JVMDefineModule {
  39 
  40     public static void main(String args[]) throws Throwable {
  41         MyClassLoader cl = new MyClassLoader();
  42         Object m;
  43 
  44         // NULL classloader argument, expect success
  45         m = ModuleHelper.ModuleObject("mymodule", null, new String[] { "mypackage" });
  46         assertNotNull(m, "Module should not be null");
  47         ModuleHelper.DefineModule(m, "9.0", "mymodule/here", new String[] { "mypackage" });
  48 
  49 /* Invalid test, won't compile.
  50         // Invalid classloader argument, expect an IAE
  51         try {
  52             m = ModuleHelper.ModuleObject("mymodule_one", new Object(), new String[] { "mypackage1" });
  53             ModuleHelper.DefineModule(m,  "9.0", "mymodule/here", new String[] { "mypackage1" });
  54             throw new RuntimeException("Failed to get expected IAE for bad loader");
  55         } catch(IllegalArgumentException e) {
  56             // Expected
  57         }
  58 */
  59 
  60         // NULL package argument, should not throw an exception
  61         m = ModuleHelper.ModuleObject("mymoduleTwo", cl, new String[] { "nullpkg" });
  62         assertNotNull(m, "Module should not be null");
  63         ModuleHelper.DefineModule(m, "9.0", "mymoduleTwo/here", null);
  64 
  65         // Null module argument, expect an NPE
  66         try {
  67             ModuleHelper.DefineModule(null,  "9.0", "mymodule/here", new String[] { "mypackage1" });
  68             throw new RuntimeException("Failed to get expected NPE for null module");
  69         } catch(NullPointerException e) {
  70             if (!e.getMessage().contains("Null module object")) {
  71               throw new RuntimeException("Failed to get expected IAE message for null module: " + e.getMessage());
  72             }
  73             // Expected
  74         }
  75 
  76         // Invalid module argument, expect an IAE
  77         try {
  78             ModuleHelper.DefineModule(new Object(),  "9.0", "mymodule/here", new String[] { "mypackage1" });
  79             throw new RuntimeException("Failed to get expected IAE or NPE for bad module");
  80         } catch(IllegalArgumentException e) {
  81             if (!e.getMessage().contains("module is not an instance of type java.lang.reflect.Module")) {
  82               throw new RuntimeException("Failed to get expected IAE message for bad module: " + e.getMessage());
  83             }
  84         }
  85 
  86         // NULL module name, expect an IAE or NPE
  87         try {
  88             m = ModuleHelper.ModuleObject(null, cl, new String[] { "mypackage2" });
  89             ModuleHelper.DefineModule(m, "9.0", "mymodule/here", new String[] { "mypackage2" });
  90             throw new RuntimeException("Failed to get expected NPE for NULL module");
  91         } catch(IllegalArgumentException e) {
  92             // Expected
  93         } catch(NullPointerException e) {
  94             // Expected
  95         }
  96 
  97         // module name is java.base, expect an IAE
  98         m = ModuleHelper.ModuleObject("java.base", cl, new String[] { "mypackage3" });
  99         try {
 100             ModuleHelper.DefineModule(m, "9.0", "mymodule/here", new String[] { "mypackage3" });
 101             throw new RuntimeException("Failed to get expected IAE for java.base, not defined with boot class loader");
 102         } catch(IllegalArgumentException e) {
 103             if (!e.getMessage().contains("Class loader must be the boot class loader")) {
 104               throw new RuntimeException("Failed to get expected IAE message for java.base: " + e.getMessage());
 105             }
 106         }
 107 
 108         // Duplicates in package list, expect an IAE
 109         m = ModuleHelper.ModuleObject("module.x", cl, new String[] { "mypackage4", "mypackage5" });
 110         try {
 111             ModuleHelper.DefineModule(m, "9.0", "mymodule/here", new String[] { "mypackage4", "mypackage5", "mypackage4" });
 112             throw new RuntimeException("Failed to get IAE for duplicate packages");
 113         } catch(IllegalArgumentException e) {
 114             if (!e.getMessage().contains("Duplicate package name")) {
 115               throw new RuntimeException("Failed to get expected IAE message for duplicate package: " + e.getMessage());
 116             }
 117         }
 118 
 119         // Empty entry in package list, expect an IAE
 120         m = ModuleHelper.ModuleObject("module.y", cl, new String[] { "mypackageX", "mypackageY" });
 121         try {
 122             ModuleHelper.DefineModule(m, "9.0", "mymodule/here", new String[] { "mypackageX", "", "mypackageY" });
 123             throw new RuntimeException("Failed to get IAE for empty package");
 124         } catch(IllegalArgumentException e) {
 125             if (!e.getMessage().contains("Invalid package name")) {
 126               throw new RuntimeException("Failed to get expected IAE message empty package entry: " + e.getMessage());
 127             }
 128         }
 129 
 130         // Duplicate module name, expect an ISE
 131         m = ModuleHelper.ModuleObject("Module_A", cl, new String[] { "mypackage6" });
 132         assertNotNull(m, "Module should not be null");
 133         ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage6" });
 134         try {
 135             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage6a" });
 136             throw new RuntimeException("Failed to get ISE for duplicate module");
 137         } catch(IllegalStateException e) {
 138             if (!e.getMessage().contains("Module Module_A is already defined")) {
 139               throw new RuntimeException("Failed to get expected ISE message for duplicate module: " + e.getMessage());
 140             }
 141         }
 142 
 143         // Package is already defined for class loader, expect an ISE
 144         m = ModuleHelper.ModuleObject("dupl.pkg.module", cl, new String[] { "mypackage6b" });
 145         try {
 146             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage6" });
 147             throw new RuntimeException("Failed to get ISE for existing package");
 148         } catch(IllegalStateException e) {
 149             if (!e.getMessage().contains("Package mypackage6 for module dupl.pkg.module is already in another module, Module_A, defined to the class loader")) {
 150               throw new RuntimeException("Failed to get expected ISE message for duplicate package: " + e.getMessage());
 151             }
 152         }
 153 
 154         // Empty module name, expect an IAE
 155         try {
 156             m = ModuleHelper.ModuleObject("", cl, new String[] { "mypackage8" });
 157             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage8" });
 158             throw new RuntimeException("Failed to get expected IAE for empty module name");
 159         } catch(IllegalArgumentException e) {
 160             // Expected
 161         }
 162 
 163         // Module name with ';', not allowed in java source
 164         try {
 165             m = ModuleHelper.ModuleObject("bad;name", cl, new String[] { "mypackage9" });
 166             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage9" });
 167             throw new RuntimeException("Failed to get expected IAE for bad;name");
 168         } catch(IllegalArgumentException e) {
 169             // Expected
 170         }
 171 
 172         // Module name with leading dot, not allowed in java source
 173         try {
 174             m = ModuleHelper.ModuleObject(".leadingdot", cl, new String[] { "mypackage9a" });
 175             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage9a" });
 176             throw new RuntimeException("Failed to get expected IAE for .leadingdot");
 177         } catch(IllegalArgumentException e) {
 178             // Expected
 179         }
 180 
 181         // Module name with trailing dot, not allowed in java source
 182         try {
 183             m = ModuleHelper.ModuleObject("trailingdot.", cl, new String[] { "mypackage9b" });
 184             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage9b" });
 185             throw new RuntimeException("Failed to get expected IAE for trailingdot.");
 186         } catch(IllegalArgumentException e) {
 187             // Expected
 188         }
 189 
 190         // Module name with consecutive dots, not allowed in java source
 191         try {
 192             m = ModuleHelper.ModuleObject("trailingdot.", cl, new String[] { "mypackage9b" });
 193             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage9b" });
 194             throw new RuntimeException("Failed to get expected IAE for trailingdot.");
 195         } catch(IllegalArgumentException e) {
 196             // Expected
 197         }
 198 
 199         // module name with multiple dots, should be okay
 200         m = ModuleHelper.ModuleObject("more.than.one.dat", cl, new String[] { "mypackage9d" });
 201         assertNotNull(m, "Module should not be null");
 202         ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "mypackage9d" });
 203 
 204         // Zero length package list, should be okay
 205         m = ModuleHelper.ModuleObject("zero.packages", cl, new String[] { });
 206         assertNotNull(m, "Module should not be null");
 207         ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { });
 208 
 209         // Invalid package name, expect an IAE
 210         m = ModuleHelper.ModuleObject("moduleFive", cl, new String[] { "your.package" });
 211         try {
 212             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "your.package" });
 213             throw new RuntimeException("Failed to get expected IAE for your.package");
 214         } catch(IllegalArgumentException e) {
 215             if (!e.getMessage().contains("Invalid package name")) {
 216               throw new RuntimeException("Failed to get expected IAE message for bad package name: " + e.getMessage());
 217             }
 218         }
 219 
 220         // Invalid package name, expect an IAE
 221         m = ModuleHelper.ModuleObject("moduleSix", cl, new String[] { "foo" }); // Name irrelevant
 222         try {
 223             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { ";your/package" });
 224             throw new RuntimeException("Failed to get expected IAE for ;your.package");
 225         } catch(IllegalArgumentException e) {
 226             if (!e.getMessage().contains("Invalid package name")) {
 227               throw new RuntimeException("Failed to get expected IAE message for bad package name: " + e.getMessage());
 228             }
 229         }
 230 
 231         // Invalid package name, expect an IAE
 232         m = ModuleHelper.ModuleObject("moduleSeven", cl, new String[] { "foo" }); // Name irrelevant
 233         try {
 234             ModuleHelper.DefineModule(m, "9.0", "module.name/here", new String[] { "7[743" });
 235             throw new RuntimeException("Failed to get expected IAE for package 7[743");
 236         } catch(IllegalArgumentException e) {
 237             if (!e.getMessage().contains("Invalid package name")) {
 238               throw new RuntimeException("Failed to get expected IAE message for bad package name: " + e.getMessage());
 239             }
 240         }
 241 
 242         // Package named "java" defined to a class loader other than the boot or platform class loader, expect an IAE
 243         m = ModuleHelper.ModuleObject("modulejavapkgOne", cl, new String[] { "java/foo" });
 244         try {
 245             // module m is defined to an instance of MyClassLoader class loader
 246             ModuleHelper.DefineModule(m, "9.0", "modulejavapkgOne", new String[] { "java/foo" });
 247             throw new RuntimeException("Failed to get expected IAE for package java/foo");
 248         } catch(IllegalArgumentException e) {
 249             if (!e.getMessage().contains("prohibited package name")) {
 250               throw new RuntimeException("Failed to get expected IAE message for prohibited package name: " + e.getMessage());
 251             }
 252         }
 253 
 254         // Package named "javabar" defined to a class loader other than the boot or platform class loader, should be ok
 255         m = ModuleHelper.ModuleObject("modulejavapkgTwo", cl, new String[] { "javabar" });
 256         assertNotNull(m, "Module should not be null");
 257         ModuleHelper.DefineModule(m, "9.0", "modulejavapkgTwo", new String[] { "javabar" });
 258 
 259         // Package named "java" defined to the boot class loader, should be ok
 260         //   m's type is a java.lang.Object, module is java.base
 261         //   java.base module is defined to the boot loader
 262         ClassLoader boot_loader = m.getClass().getClassLoader();
 263         m = ModuleHelper.ModuleObject("modulejavapkgThree", boot_loader, new String[] { "java/foo" });
 264         assertNotNull(m, "Module should not be null");
 265         ModuleHelper.DefineModule(m, "9.0", "modulejavapkgThree", new String[] { "java/foo" });
 266 
 267         // Package named "java" defined to the platform class loader, should be ok
 268         //   java.sql module defined to the platform class loader.
 269         java.sql.Time jst = new java.sql.Time(45 * 1000);
 270         ClassLoader platform_loader = jst.getClass().getClassLoader();
 271         m = ModuleHelper.ModuleObject("modulejavapkgFour", platform_loader, new String[] { "java/foo" });
 272         assertNotNull(m, "Module should not be null");
 273         ModuleHelper.DefineModule(m, "9.0", "modulejavapkgFour", new String[] { "java/foo" });
 274 
 275         // module version that is null, should be okay
 276         m = ModuleHelper.ModuleObject("moduleEight", cl, new String[] { "a_package_8" });
 277         assertNotNull(m, "Module should not be null");
 278         ModuleHelper.DefineModule(m, null, "moduleEight/here", new String[] { "a_package_8" });
 279 
 280         // module version that is "", should be okay
 281         m = ModuleHelper.ModuleObject("moduleNine", cl, new String[] { "a_package_9" });
 282         assertNotNull(m, "Module should not be null");
 283         ModuleHelper.DefineModule(m, "", "moduleNine/here", new String[] { "a_package_9" });
 284 
 285         // module location that is null, should be okay
 286         m = ModuleHelper.ModuleObject("moduleTen", cl, new String[] { "a_package_10" });
 287         assertNotNull(m, "Module should not be null");
 288         ModuleHelper.DefineModule(m, "9.0", null, new String[] { "a_package_10" });
 289 
 290         // module location that is "", should be okay
 291         m = ModuleHelper.ModuleObject("moduleEleven", cl, new String[] { "a_package_11" });
 292         assertNotNull(m, "Module should not be null");
 293         ModuleHelper.DefineModule(m, "9.0", "", new String[] { "a_package_11" });
 294     }
 295 
 296     static class MyClassLoader extends ClassLoader { }
 297 }