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1 /* |
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2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 /* |
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27 * @test |
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28 * @bug 8159262 |
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29 * @summary Test differing scenarios where a module's readability list and a package's exportability list should be walked |
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30 * @modules java.base/jdk.internal.misc |
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31 * @library /testlibrary /test/lib |
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32 * @compile ../AccessCheck/ModuleLibrary.java |
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33 * @compile ModuleSameCLMain.java |
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34 * @compile ModuleNonBuiltinCLMain.java |
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35 * @compile CustomSystemClassLoader.java |
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36 * @build ModuleStress |
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37 * @run main/othervm ModuleStress |
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38 */ |
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39 |
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40 import jdk.test.lib.*; |
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41 import java.io.File; |
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42 |
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43 public class ModuleStress { |
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44 |
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45 public static void main(String[] args) throws Exception { |
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46 |
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47 // Test #1: java -version |
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48 // All modules' readability lists and packages' exportability |
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49 // lists should contain only modules defined to the 3 builtin |
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50 // loaders (boot, application, platform). Thus there is |
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51 // not a need to walk those lists at a GC safepoint since |
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52 // those loaders never die. |
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53 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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54 "-Xbootclasspath/a:.", |
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55 "-Xlog:modules=trace", |
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56 "-version"); |
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57 |
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58 OutputAnalyzer oa = new OutputAnalyzer(pb.start()); |
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59 oa.shouldNotContain("must be walked") |
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60 .shouldNotContain("being walked") |
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61 .shouldHaveExitValue(0); |
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62 |
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63 // Next 2 tests involve the use of class p1.c1 and p2.c2 |
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64 String source1 = "package p1;" + |
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65 "import p2.c2;" + |
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66 "public class c1 {" + |
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67 " public c1() {" + |
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68 " p2.c2 c2_obj = new p2.c2();" + |
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69 " c2_obj.method2();" + |
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70 " }" + |
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71 "}"; |
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72 |
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73 String source2 = "package p2;" + |
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74 "public class c2 {" + |
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75 " public void method2() { }" + |
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76 "}"; |
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77 |
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78 ClassFileInstaller.writeClassToDisk("p2/c2", |
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79 InMemoryJavaCompiler.compile("p2.c2", source2), System.getProperty("test.classes")); |
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80 |
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81 ClassFileInstaller.writeClassToDisk("p1/c1", |
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82 InMemoryJavaCompiler.compile("p1.c1", source1), System.getProperty("test.classes")); |
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83 |
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84 // Test #2: Load two modules defined to the same customer class loader. |
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85 // m1's module readability list and package p2's exportability should |
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86 // not be walked at a GC safepoint since both modules are defined to |
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87 // the same loader and thus have the exact same life cycle. |
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88 pb = ProcessTools.createJavaProcessBuilder( |
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89 "-Xbootclasspath/a:.", |
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90 "-Xlog:modules=trace", |
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91 "ModuleSameCLMain"); |
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92 |
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93 oa = new OutputAnalyzer(pb.start()); |
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94 oa.shouldNotContain("must be walked") |
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95 .shouldNotContain("being walked") |
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96 .shouldHaveExitValue(0); |
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97 |
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98 // Test #3: Load two modules in differing custom class loaders. |
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99 // m1's module readability list and package p2's exportability list must |
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100 // be walked at a GC safepoint since both modules are defined to non-builtin |
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101 // class loaders which could die and thus be unloaded. |
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102 pb = ProcessTools.createJavaProcessBuilder( |
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103 "-Xbootclasspath/a:.", |
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104 "-Xlog:modules=trace", |
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105 "ModuleNonBuiltinCLMain"); |
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106 |
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107 oa = new OutputAnalyzer(pb.start()); |
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108 oa.shouldContain("module m1 reads list must be walked") |
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109 .shouldContain("package p2 defined in module m2, exports list must be walked") |
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110 .shouldNotContain("module m2 reads list must be walked") |
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111 .shouldHaveExitValue(0); |
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112 |
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113 // Test #4: Load two modules in differing custom class loaders, |
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114 // of which one has been designated as the custom system class loader |
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115 // via -Djava.system.class.loader=CustomSystemClassLoader. Since |
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116 // m3 is defined to the system class loader, m2's module readability |
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117 // list does not have to be walked at a GC safepoint, but package p2's |
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118 // exportability list does. |
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119 pb = ProcessTools.createJavaProcessBuilder( |
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120 "-Djava.system.class.loader=CustomSystemClassLoader", |
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121 "-Xbootclasspath/a:.", |
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122 "-Xlog:modules=trace", |
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123 "ModuleNonBuiltinCLMain"); |
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124 |
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125 oa = new OutputAnalyzer(pb.start()); |
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126 oa.shouldContain("package p2 defined in module m2, exports list must be walked") |
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127 .shouldNotContain("module m2 reads list must be walked") |
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128 .shouldHaveExitValue(0); |
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129 |
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130 } |
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131 } |