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 JVMIsExportedToModule 33 */ 34 35 import static jdk.test.lib.Asserts.*; 36 37 public class JVMIsExportedToModule { 38 39 public static void main(String args[]) throws Throwable { 40 MyClassLoader from_cl = new MyClassLoader(); 41 MyClassLoader to_cl = new MyClassLoader(); 42 Object from_module, to_module; 43 boolean result; 44 45 from_module = ModuleHelper.ModuleObject("from_module", from_cl, new String[] { "mypackage", "this/package" }); 46 assertNotNull(from_module, "Module from_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 to_module should not be null"); 50 ModuleHelper.DefineModule(to_module, "9.0", "to_module/here", new String[] { "yourpackage", "that/package" }); 51 52 Object unnamed_module = JVMIsExportedToModule.class.getModule(); 53 assertNotNull(unnamed_module, "Module unnamed_module should not be null"); 54 55 // Null from_module argument, expect an NPE 56 try { 57 result = ModuleHelper.IsExportedToModule(null, "mypackage", to_module); 58 throw new RuntimeException("Failed to get the expected NPE for null from_module"); 59 } catch(NullPointerException e) { 60 // Expected 61 } 62 63 // Null to_module argument, expect an NPE 64 try { 65 result = ModuleHelper.IsExportedToModule(from_module, "mypackage", null); 66 throw new RuntimeException("Failed to get expected NPE for null to_module"); 67 } catch(NullPointerException e) { 68 // Expected 69 } 70 71 // Null package argument, expect an NPE 72 try { 73 result = ModuleHelper.IsExportedToModule(from_module, null, to_module); 74 throw new RuntimeException("Failed to get the expected NPE for null package"); 75 } catch(NullPointerException e) { 76 // Expected 77 } 78 79 // Bad from_module argument, expect an IAE 80 try { 81 result = ModuleHelper.IsExportedToModule(to_cl, "mypackage", to_module); 82 throw new RuntimeException("Failed to get the expected IAE for bad from_module"); 83 } catch(IllegalArgumentException e) { 84 // Expected 85 } 86 87 // Bad to_module argument, expect an IAE 88 try { 89 result = ModuleHelper.IsExportedToModule(from_module, "mypackage", from_cl); 90 throw new RuntimeException("Failed to get the expected IAE"); 91 } catch(IllegalArgumentException e) { 92 // Expected 93 } 94 95 // Check that package is exported to its own module 96 result = ModuleHelper.IsExportedToModule(from_module, "mypackage", from_module); 97 assertTrue(result, "Package is always exported to itself"); 98 99 // Package is not in to_module, expect an IAE 100 try { 101 result = ModuleHelper.IsExportedToModule(from_module, "yourpackage", from_cl); 102 throw new RuntimeException("Failed to get the expected IAE for package not in to_module"); 103 } catch(IllegalArgumentException e) { 104 // Expected 105 } 106 107 // Package is accessible when exported to unnamed module 108 ModuleHelper.AddModuleExportsToAll(from_module, "mypackage"); 109 result = ModuleHelper.IsExportedToModule(from_module, "mypackage", to_module); 110 assertTrue(result, "Package exported to unnamed module is visible to named module"); 111 112 result = ModuleHelper.IsExportedToModule(from_module, "mypackage", unnamed_module); 113 assertTrue(result, "Package exported to unnamed module is visible to unnamed module"); 114 115 // Package is accessible only to named module when exported to named module 116 ModuleHelper.AddModuleExports(from_module, "this/package", to_module); 117 result = ModuleHelper.IsExportedToModule(from_module, "this/package", to_module); 118 assertTrue(result, "Package exported to named module is visible to named module"); 119 result = ModuleHelper.IsExportedToModule(from_module, "this/package", unnamed_module); 120 assertTrue(!result, "Package exported to named module is not visible to unnamed module"); 121 } 122 123 static class MyClassLoader extends ClassLoader { } 124 }