1 /* |
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2 * Copyright (c) 2015, 2018, 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. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @summary Test StripDebugPlugin |
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27 * @author Jean-Francois Denise |
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28 * @library ../../lib |
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29 * @build tests.* |
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30 * @modules java.base/jdk.internal.jimage |
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31 * jdk.jlink/jdk.tools.jlink.internal |
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32 * jdk.jlink/jdk.tools.jlink.internal.plugins |
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33 * jdk.jlink/jdk.tools.jlink.plugin |
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34 * jdk.jlink/jdk.tools.jimage |
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35 * jdk.jlink/jdk.tools.jmod |
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36 * jdk.jdeps/com.sun.tools.classfile |
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37 * jdk.compiler |
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38 * @run main StripDebugPluginTest |
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39 */ |
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40 |
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41 import java.io.ByteArrayInputStream; |
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42 import java.io.IOException; |
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43 import java.nio.file.Files; |
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44 import java.nio.file.Path; |
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45 import java.util.ArrayList; |
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46 import java.util.Arrays; |
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47 import java.util.Iterator; |
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48 import java.util.List; |
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49 import java.util.stream.Stream; |
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50 |
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51 import com.sun.tools.classfile.Attribute; |
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52 import com.sun.tools.classfile.ClassFile; |
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53 import com.sun.tools.classfile.Code_attribute; |
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54 import com.sun.tools.classfile.ConstantPoolException; |
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55 import com.sun.tools.classfile.Method; |
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56 import java.util.HashMap; |
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57 import java.util.Map; |
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58 import jdk.tools.jlink.internal.ResourcePoolManager; |
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59 import jdk.tools.jlink.internal.plugins.StripDebugPlugin; |
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60 import jdk.tools.jlink.plugin.ResourcePoolEntry; |
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61 import jdk.tools.jlink.plugin.ResourcePool; |
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62 import jdk.tools.jlink.plugin.Plugin; |
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63 import tests.Helper; |
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64 |
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65 public class StripDebugPluginTest { |
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66 public static void main(String[] args) throws Exception { |
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67 new StripDebugPluginTest().test(); |
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68 } |
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69 |
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70 public void test() throws Exception { |
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71 Helper helper = Helper.newHelper(); |
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72 if (helper == null) { |
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73 // Skip test if the jmods directory is missing (e.g. exploded image) |
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74 System.err.println("Test not run, NO jmods directory"); |
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75 return; |
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76 } |
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77 |
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78 List<String> classes = Arrays.asList("toto.Main", "toto.com.foo.bar.X"); |
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79 Path moduleFile = helper.generateModuleCompiledClasses( |
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80 helper.getJmodSrcDir(), helper.getJmodClassesDir(), "leaf1", classes); |
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81 Path moduleInfo = moduleFile.resolve("module-info.class"); |
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82 |
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83 // Classes have been compiled in debug. |
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84 List<Path> covered = new ArrayList<>(); |
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85 byte[] infoContent = Files.readAllBytes(moduleInfo); |
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86 try (Stream<Path> stream = Files.walk(moduleFile)) { |
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87 for (Iterator<Path> iterator = stream.iterator(); iterator.hasNext(); ) { |
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88 Path p = iterator.next(); |
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89 if (Files.isRegularFile(p) && p.toString().endsWith(".class")) { |
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90 byte[] content = Files.readAllBytes(p); |
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91 String path = "/" + helper.getJmodClassesDir().relativize(p).toString(); |
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92 String moduleInfoPath = path + "/module-info.class"; |
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93 check(path, content, moduleInfoPath, infoContent); |
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94 covered.add(p); |
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95 } |
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96 } |
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97 } |
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98 if (covered.isEmpty()) { |
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99 throw new AssertionError("No class to compress"); |
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100 } else { |
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101 System.err.println("removed debug attributes from " |
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102 + covered.size() + " classes"); |
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103 } |
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104 } |
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105 |
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106 private void check(String path, byte[] content, String infoPath, byte[] moduleInfo) throws Exception { |
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107 path = path.replace('\\', '/'); |
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108 StripDebugPlugin debug = new StripDebugPlugin(); |
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109 debug.configure(new HashMap<>()); |
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110 ResourcePoolEntry result1 = stripDebug(debug, ResourcePoolEntry.create(path,content), path, infoPath, moduleInfo); |
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111 |
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112 if (!path.endsWith("module-info.class")) { |
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113 if (result1.contentLength() >= content.length) { |
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114 throw new AssertionError("Class size not reduced, debug info not " |
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115 + "removed for " + path); |
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116 } |
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117 checkDebugAttributes(result1.contentBytes()); |
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118 } |
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119 |
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120 ResourcePoolEntry result2 = stripDebug(debug, result1, path, infoPath, moduleInfo); |
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121 if (result1.contentLength() != result2.contentLength()) { |
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122 throw new AssertionError("removing debug info twice reduces class size of " |
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123 + path); |
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124 } |
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125 checkDebugAttributes(result1.contentBytes()); |
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126 } |
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127 |
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128 private ResourcePoolEntry stripDebug(Plugin debug, ResourcePoolEntry classResource, |
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129 String path, String infoPath, byte[] moduleInfo) throws Exception { |
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130 ResourcePoolManager resources = new ResourcePoolManager(); |
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131 resources.add(classResource); |
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132 if (!path.endsWith("module-info.class")) { |
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133 ResourcePoolEntry res2 = ResourcePoolEntry.create(infoPath, moduleInfo); |
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134 resources.add(res2); |
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135 } |
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136 ResourcePoolManager results = new ResourcePoolManager(); |
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137 ResourcePool resPool = debug.transform(resources.resourcePool(), |
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138 results.resourcePoolBuilder()); |
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139 System.out.println(classResource.path()); |
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140 |
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141 return resPool.findEntry(classResource.path()).get(); |
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142 } |
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143 |
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144 private void checkDebugAttributes(byte[] strippedClassFile) throws IOException, ConstantPoolException { |
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145 ClassFile classFile = ClassFile.read(new ByteArrayInputStream(strippedClassFile)); |
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146 String[] debugAttributes = new String[]{ |
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147 Attribute.LineNumberTable, |
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148 Attribute.LocalVariableTable, |
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149 Attribute.LocalVariableTypeTable |
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150 }; |
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151 for (Method method : classFile.methods) { |
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152 String methodName = method.getName(classFile.constant_pool); |
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153 Code_attribute code = (Code_attribute) method.attributes.get(Attribute.Code); |
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154 for (String attr : debugAttributes) { |
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155 if (code.attributes.get(attr) != null) { |
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156 throw new AssertionError("Debug attribute was not removed: " + attr + |
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157 " from method " + classFile.getName() + "#" + methodName); |
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158 } |
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159 } |
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160 } |
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161 } |
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162 } |
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