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  *          java.desktop
  28  * @run main/othervm --add-exports=java.desktop/sun.awt=java.base AddExportsTest
  29  * @run main/othervm --add-exports=java.desktop/sun.awt=ALL-UNNAMED AddExportsTest
  30  * @summary Test Module isExported methods with exports changed by -AddExportsTest
  31  */
  32 
  33 import java.lang.reflect.Layer;
  34 import java.lang.reflect.Module;
  35 import java.util.Optional;
  36 import java.util.stream.Stream;
  37 
  38 import jdk.internal.misc.VM;
  39 
  40 public class AddExportsTest {
  41     /*
  42      * jtreg sets -Dtest.modules system property to the internal APIs
  43      * specified at @modules tag.  The test will exclude --add-exports set
  44      * for @modules.
  45      */
  46     private static final String TEST_MODULES = System.getProperty("test.modules");
  47 
  48     public static void main(String[] args) {
  49 
  50         Optional<String> oaddExports = Stream.of(VM.getRuntimeArguments())
  51             .filter(arg -> arg.startsWith("--add-exports="))
  52             .filter(arg -> !arg.equals("--add-exports=" + TEST_MODULES + "=ALL-UNNAMED"))
  53             .map(arg -> arg.substring("--add-exports=".length(), arg.length()))
  54             .findFirst();
  55 
  56         assertTrue(oaddExports.isPresent());
  57 
  58         Layer bootLayer = Layer.boot();
  59 
  60         Module unnamedModule = AddExportsTest.class.getModule();
  61         assertFalse(unnamedModule.isNamed());
  62 
  63         for (String expr : oaddExports.get().split(",")) {
  64 
  65             String[] s = expr.split("=");
  66             assertTrue(s.length == 2);
  67 
  68             // $MODULE/$PACKAGE
  69             String[] moduleAndPackage = s[0].split("/");
  70             assertTrue(moduleAndPackage.length == 2);
  71 
  72             String mn = moduleAndPackage[0];
  73             String pn = moduleAndPackage[1];
  74 
  75             // source module
  76             Module source;
  77             Optional<Module> om = bootLayer.findModule(mn);
  78             assertTrue(om.isPresent(), mn + " not in boot layer");
  79             source = om.get();
  80 
  81             // package should not be exported unconditionally
  82             assertFalse(source.isExported(pn),
  83                         pn + " should not be exported unconditionally");
  84 
  85             // $TARGET
  86             String tn = s[1];
  87             if ("ALL-UNNAMED".equals(tn)) {
  88 
  89                 // package is exported to all unnamed modules
  90                 assertTrue(source.isExported(pn, unnamedModule),
  91                            pn + " should be exported to all unnamed modules");
  92 
  93             } else {
  94 
  95                 om = bootLayer.findModule(tn);
  96                 assertTrue(om.isPresent());
  97                 Module target = om.get();
  98 
  99                 // package should be exported to target module
 100                 assertTrue(source.isExported(pn, target),
 101                            pn + " should be exported to " + target);
 102 
 103                 // package should not be exported to unnamed modules
 104                 assertFalse(source.isExported(pn, unnamedModule),
 105                             pn + " should not be exported to unnamed modules");
 106 
 107             }
 108 
 109         }
 110     }
 111 
 112     static void assertTrue(boolean cond) {
 113         if (!cond) throw new RuntimeException();
 114     }
 115 
 116     static void assertTrue(boolean cond, String msg) {
 117         if (!cond) throw new RuntimeException(msg);
 118     }
 119 
 120     static void assertFalse(boolean cond) {
 121         if (cond) throw new RuntimeException();
 122     }
 123 
 124     static void assertFalse(boolean cond, String msg) {
 125         if (cond) throw new RuntimeException(msg);
 126     }
 127 
 128 }