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  * @compile p2/c2.java

    29  * @build sun.hotspot.WhiteBox

    30  * @compile/module=java.base java/lang/reflect/ModuleHelper.java

    31  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    32  *                              sun.hotspot.WhiteBox$WhiteBoxPermission

    33  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI JVMGetModuleByPkgName

    34  */

    35 

    36 import static jdk.test.lib.Asserts.*;

    37 import java.lang.ClassLoader;

    38 import java.lang.reflect.Module;

    39 

    40 public class JVMGetModuleByPkgName {

    41 

    42     public static void main(String args[]) throws Throwable {

    43 

    44         Module javaBase = ModuleHelper.GetModuleByPackageName(null, "java/lang");

    45         if (!javaBase.getName().equals("java.base")) {

    46             throw new RuntimeException(

    47                 "Failed to get module java.base for package java/lang");

    48         }

    49 

    50         if (ModuleHelper.GetModuleByPackageName(null, "bad.package.name") != null) {

    51             throw new RuntimeException("Failed to get null for bad.package.name");

    52         }

    53 

    54         ClassLoader systemLoader = ClassLoader.getSystemClassLoader();

    55         if (ModuleHelper.GetModuleByPackageName(systemLoader, "java/lang") != null) {

    56             throw new RuntimeException(

    57                 "Failed to get null for systemClassLoader and java/lang");

    58         }

    59 

    60         try {

    61             ModuleHelper.GetModuleByPackageName(systemLoader, null);

    62             throw new RuntimeException(

    63                 "Failed to throw NullPointerException for null package name");

    64         } catch(NullPointerException e) {

    65              // Expected

    66         }

    67 

    68         Module unnamedModule = ModuleHelper.GetModuleByPackageName(systemLoader, "");

    69         if (unnamedModule.isNamed()) {

    70             throw new RuntimeException(

    71                 "Unexpected named module returned for unnamed package");

    72         }

    73 

    74         p2.c2 obj = new p2.c2();

    75         unnamedModule = ModuleHelper.GetModuleByPackageName(systemLoader, "p2");

    76         if (unnamedModule.isNamed()) {

    77             throw new RuntimeException(

    78                 "Unexpected named module returned for package p2 in unnamed module");

    79         }

    80 

    81         MyClassLoader cl1 = new MyClassLoader();

    82         Module module_one = (Module)ModuleHelper.ModuleObject("module_one", cl1, new String[] { "mypackage" });

    83         assertNotNull(module_one, "Module should not be null");

    84         ModuleHelper.DefineModule(module_one, "9.0", "module_one/here", new String[] { "mypackage" });

    85         if (ModuleHelper.GetModuleByPackageName(cl1, "mypackage") != module_one) {

    86             throw new RuntimeException("Wrong module returned for cl1 mypackage");

    87         }

    88     }

    89 

    90     static class MyClassLoader extends ClassLoader { }

    91 }