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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. |
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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 * @bug 8149757 |
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27 * @summary Test that StandardJavaFileManager uses the correct version of a |
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28 * class from a multi-release jar on classpath |
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29 * @library /tools/lib |
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30 * @modules jdk.compiler/com.sun.tools.javac.api |
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31 * jdk.compiler/com.sun.tools.javac.main |
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32 * @build toolbox.ToolBox |
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33 * @run testng MultiReleaseJarAwareSJFM |
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34 */ |
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35 |
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36 import org.testng.Assert; |
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37 import org.testng.annotations.AfterClass; |
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38 import org.testng.annotations.BeforeClass; |
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39 import org.testng.annotations.DataProvider; |
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40 import org.testng.annotations.Test; |
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41 |
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42 import javax.tools.FileObject; |
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43 import javax.tools.JavaFileManager; |
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44 import javax.tools.StandardJavaFileManager; |
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45 import javax.tools.ToolProvider; |
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46 import java.io.File; |
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47 import java.io.IOException; |
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48 import java.io.InputStream; |
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49 import java.lang.invoke.MethodHandle; |
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50 import java.lang.invoke.MethodHandles; |
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51 import java.lang.invoke.MethodType; |
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52 import java.util.List; |
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53 |
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54 import toolbox.JarTask; |
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55 import toolbox.JavacTask; |
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56 import toolbox.ToolBox; |
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57 |
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58 public class MultiReleaseJarAwareSJFM { |
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59 |
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60 private final String version8 = |
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61 "package version;\n" + |
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62 "\n" + |
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63 "public class Version {\n" + |
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64 " public int getVersion() {\n" + |
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65 " return 8;\n" + |
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66 " }\n" + |
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67 "}\n"; |
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68 |
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69 private final String version9 = |
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70 "package version;\n" + |
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71 "\n" + |
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72 "public class Version {\n" + |
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73 " public int getVersion() {\n" + |
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74 " int version = (new PackagePrivate()).getVersion();\n" + |
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75 " if (version == 9) return 9;\n" + |
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76 " return version;\n" + |
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77 " }\n" + |
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78 "}\n"; |
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79 |
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80 private final String packagePrivate = |
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81 "package version;\n" + |
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82 "\n" + |
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83 "class PackagePrivate {\n" + |
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84 " int getVersion() {\n" + |
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85 " return 9;\n" + |
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86 " }\n" + |
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87 "}\n"; |
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88 |
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89 private final String version10 = |
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90 "package version;\n" + |
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91 "\n" + |
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92 "public class Version {\n" + |
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93 " public int getVersion() {\n" + |
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94 " return 10;\n" + |
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95 " }\n" + |
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96 "}\n"; |
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97 |
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98 private final String manifest = |
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99 "Manifest-Version: 1.0\n" + |
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100 "Multi-Release: true\n"; |
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101 |
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102 private final ToolBox tb = new ToolBox(); |
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103 |
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104 private final JavaFileManager.Location jloc = new JavaFileManager.Location() { |
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105 @Override |
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106 public String getName() { |
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107 return "Multi-Release Jar"; |
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108 } |
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109 @Override |
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110 public boolean isOutputLocation() { |
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111 return false; |
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112 } |
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113 }; |
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114 |
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115 @BeforeClass |
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116 public void setup() throws Exception { |
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117 tb.createDirectories("classes", |
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118 "classes/META-INF/versions/9", |
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119 "classes/META-INF/versions/10"); |
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120 new JavacTask(tb) |
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121 .outdir("classes") |
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122 .sources(version8) |
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123 .run(); |
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124 new JavacTask(tb) |
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125 .outdir("classes/META-INF/versions/9") |
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126 .sources(version9, packagePrivate) |
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127 .run(); |
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128 new JavacTask(tb) |
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129 .outdir("classes/META-INF/versions/10") |
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130 .sources(version10) |
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131 .run(); |
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132 new JarTask(tb, "multi-release.jar") |
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133 .manifest(manifest) |
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134 .baseDir("classes") |
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135 .files("version/Version.class", |
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136 "META-INF/versions/9/version/Version.class", |
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137 "META-INF/versions/9/version/PackagePrivate.class", |
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138 "META-INF/versions/10/version/Version.class") |
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139 .run(); |
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140 } |
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141 |
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142 @AfterClass |
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143 public void teardown() throws Exception { |
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144 tb.deleteFiles( |
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145 "classes/META-INF/versions/10/version/Version.class", |
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146 "classes/META-INF/versions/10/version", |
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147 "classes/META-INF/versions/10/", |
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148 "classes/META-INF/versions/9/version/Version.class", |
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149 "classes/META-INF/versions/9/version/PackagePrivate.class", |
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150 "classes/META-INF/versions/9/version", |
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151 "classes/META-INF/versions/9", |
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152 "classes/META-INF/versions", |
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153 "classes/META-INF", |
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154 "classes/version/Version.class", |
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155 "classes/version", |
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156 "classes", |
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157 "multi-release.jar" |
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158 ); |
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159 } |
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160 |
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161 @DataProvider(name = "versions") |
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162 public Object[][] data() { |
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163 return new Object[][] { |
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164 {"", 8}, |
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165 {"8", 8}, |
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166 {"9", 9}, |
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167 {"runtime", jdk.Version.current().major()} |
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168 }; |
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169 } |
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170 |
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171 @Test(dataProvider = "versions") |
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172 public void test(String version, int expected) throws Throwable { |
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173 StandardJavaFileManager jfm = ToolProvider.getSystemJavaCompiler().getStandardFileManager(null, null, null); |
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174 jfm.setLocation(jloc, List.of(new File("multi-release.jar"))); |
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175 |
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176 if (version.length() > 0) { |
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177 jfm.handleOption("-multi-release", List.of(version).iterator()); |
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178 } |
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179 |
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180 CustomClassLoader cldr = new CustomClassLoader(jfm); |
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181 Class<?> versionClass = cldr.loadClass("version.Version"); |
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182 MethodType mt = MethodType.methodType(int.class); |
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183 MethodHandle mh = MethodHandles.lookup().findVirtual(versionClass, "getVersion", mt); |
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184 int v = (int)mh.invoke(versionClass.newInstance()); |
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185 Assert.assertEquals(v, expected); |
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186 |
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187 jfm.close(); |
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188 } |
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189 |
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190 private class CustomClassLoader extends ClassLoader { |
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191 private final JavaFileManager jfm; |
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192 |
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193 public CustomClassLoader(JavaFileManager jfm) { |
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194 super(null); |
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195 this.jfm = jfm; |
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196 } |
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197 |
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198 @Override |
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199 protected Class<?> findClass(String name) throws ClassNotFoundException { |
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200 int n = name.lastIndexOf('.'); |
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201 String pkg = n == -1 ? "" : name.substring(0, n); |
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202 String cls = name.substring(n + 1) + ".class"; |
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203 byte[] b; |
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204 try { |
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205 FileObject obj = jfm.getFileForInput(jloc, pkg, cls); |
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206 try (InputStream is = obj.openInputStream()) { |
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207 b = is.readAllBytes(); |
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208 } |
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209 } catch (IOException x) { |
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210 throw new ClassNotFoundException(x.getMessage(), x); |
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211 } |
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212 return defineClass(name, b, 0, b.length); |
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213 } |
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214 } |
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215 } |
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216 |