T6877206.java revision 3155:30e288cb2d22
1/* 2 * Copyright (c) 2009, 2015, 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 * @bug 6877206 27 * @summary JavaFileObject.toUri returns bogus URI (win) 28 * @modules jdk.compiler/com.sun.tools.javac.file 29 * jdk.compiler/com.sun.tools.javac.util 30 */ 31 32import java.io.*; 33import java.net.*; 34import java.util.*; 35import java.util.jar.*; 36import java.util.zip.*; 37import javax.tools.*; 38 39import com.sun.tools.javac.file.JavacFileManager; 40import com.sun.tools.javac.util.Context; 41import com.sun.tools.javac.util.Options; 42 43// Test URIs returned from JavacFileManager and its support classes. 44// For a variety of file objects, verify the validity of FileObject.toUri() 45// by verifying the URI exists and points to the same contents as the file 46// object itself 47 48public class T6877206 { 49 public static void main(String... args) throws Exception { 50 new T6877206().run(); 51 } 52 53 Set<String> foundClasses = new TreeSet<String>(); 54 Set<String> foundJars = new TreeSet<String>(); 55 56 void run() throws Exception { 57 // names for entries to be created in directories and jar files 58 String[] entries = { "p/A.class", "p/resources/A-1.jpg" }; 59 60 // test various combinations of directories and jar files, intended to 61 // cover all sources of URIs within JavacFileManager's support classes 62 63 test(createFileManager(), createDir("dir", entries), "p", entries.length); 64 test(createFileManager(), createDir("a b/dir", entries), "p", entries.length); 65 test(createFileManager(), createJar("jar", entries), "p", entries.length); 66 test(createFileManager(), createJar("jar jar", entries), "p", entries.length); 67 68 // Verify that we hit the files we intended 69 checkCoverage("classes", foundClasses, 70 "DirectoryFileObject", "JarFileObject"); 71 72 // Verify that we hit the jar files we intended 73 checkCoverage("jar files", foundJars, "jar", "jar jar"); 74 } 75 76 // use a new file manager for each test 77 void test(StandardJavaFileManager fm, File f, String pkg, int expect) throws Exception { 78 JarURLConnection c; 79 System.err.println("Test " + f); 80 try { 81 fm.setLocation(StandardLocation.CLASS_PATH, Collections.singleton(f)); 82 83 int count = 0; 84 for (JavaFileObject fo: fm.list(StandardLocation.CLASS_PATH, 85 pkg, EnumSet.allOf(JavaFileObject.Kind.class), true)) { 86 System.err.println("checking " + fo); 87 // record the file object class name for coverage checks later 88 foundClasses.add(fo.getClass().getSimpleName()); 89 testFileObject(fo); 90 count++; 91 } 92 93 if (expect > 0 && count != expect) 94 throw new Exception("wrong number of entries found: " 95 + count + ", expected " + expect); 96 } finally { 97 fm.close(); 98 } 99 } 100 101 void testFileObject(JavaFileObject fo) throws Exception { 102 // test the validity of the result of toUri() by using URLConnection 103 // and comparing the results of reading from the connection with the 104 // result of reading from the file object directly. 105 URI uri = fo.toUri(); 106 System.err.println("uri: " + uri); 107 108 URLConnection urlconn = uri.toURL().openConnection(); 109 if (urlconn instanceof JarURLConnection) { 110 JarURLConnection jarconn = (JarURLConnection) urlconn; 111 File f = new File(jarconn.getJarFile().getName()); 112 // record access to the jar file for coverage checks later 113 foundJars.add(f.getName()); 114 } 115 116 try { 117 byte[] uriData = read(urlconn.getInputStream()); 118 byte[] foData = read(fo.openInputStream()); 119 if (!Arrays.equals(uriData, foData)) { 120 if (uriData.length != foData.length) 121 throw new Exception("data size differs: uri data " 122 + uriData.length + " bytes, fo data " + foData.length+ " bytes"); 123 for (int i = 0; i < uriData.length; i++) { 124 if (uriData[i] != foData[i]) 125 throw new Exception("unexpected data returned at offset " + i 126 + ", uri data " + uriData[i] + ", fo data " + foData[i]); 127 } 128 throw new AssertionError("cannot find difference"); 129 } 130 } finally { 131 // In principle, simply closing the result of urlconn.getInputStream() 132 // should have been sufficient. But the internal JarURLConnection 133 // does not close the JarFile in an expeditious manner, thus preventing 134 // jtreg from deleting the jar file before starting the next test. 135 // Therefore we force access to the JarURLConnection to close the 136 // JarFile when necessary. 137 if (urlconn instanceof JarURLConnection) { 138 JarURLConnection jarconn = (JarURLConnection) urlconn; 139 jarconn.getJarFile().close(); 140 } 141 } 142 } 143 144 void checkCoverage(String label, Set<String> found, String... expect) throws Exception { 145 Set<String> e = new TreeSet<String>(Arrays.asList(expect)); 146 if (!found.equals(e)) { 147 e.removeAll(found); 148 throw new Exception("expected " + label + " not used: " + e); 149 } 150 } 151 152 JavacFileManager createFileManager() { 153 return createFileManager(false); 154 } 155 156 JavacFileManager createFileManager(boolean useSymbolFile) { 157 Context ctx = new Context(); 158 Options options = Options.instance(ctx); 159 if (!useSymbolFile) { 160 options.put("ignore.symbol.file", "true"); 161 } 162 return new JavacFileManager(ctx, false, null); 163 } 164 165 File createDir(String name, String... entries) throws Exception { 166 File dir = new File(name); 167 if (!dir.mkdirs()) 168 throw new Exception("cannot create directories " + dir); 169 for (String e: entries) { 170 writeFile(new File(dir, e), e); 171 } 172 return dir; 173 } 174 175 File createJar(String name, String... entries) throws IOException { 176 File jar = new File(name); 177 OutputStream out = new FileOutputStream(jar); 178 try { 179 JarOutputStream jos = new JarOutputStream(out); 180 for (String e: entries) { 181 jos.putNextEntry(new ZipEntry(e)); 182 jos.write(e.getBytes()); 183 } 184 jos.close(); 185 } finally { 186 out.close(); 187 } 188 return jar; 189 } 190 191 byte[] read(InputStream in) throws IOException { 192 byte[] data = new byte[1024]; 193 int offset = 0; 194 try { 195 int n; 196 while ((n = in.read(data, offset, data.length - offset)) != -1) { 197 offset += n; 198 if (offset == data.length) 199 data = Arrays.copyOf(data, 2 * data.length); 200 } 201 } finally { 202 in.close(); 203 } 204 return Arrays.copyOf(data, offset); 205 } 206 207 void writeFile(File f, String s) throws IOException { 208 f.getParentFile().mkdirs(); 209 FileWriter out = new FileWriter(f); 210 try { 211 out.write(s); 212 } finally { 213 out.close(); 214 } 215 } 216} 217