1 /* 2 * Copyright (c) 2009, 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 6879371 27 * @summary javap does not close internal default file manager 28 */ 29 30 import java.io.*; 31 import java.util.zip.*; 32 33 public class T6879371 { main(String[] args)34 public static void main(String[] args) throws Exception { 35 new T6879371().run(); 36 } 37 run()38 public void run() throws Exception { 39 // create a simple test class which we can put into 40 // a test zip file and know that it will be used by 41 // javap. 42 File classDir = new File("classes"); 43 classDir.mkdir(); 44 45 String className = "Test"; 46 File javaFile = writeTestFile(className); 47 compileTestFile(classDir, javaFile); 48 49 test(classDir, className, false); 50 test(classDir, className, true); 51 } 52 test(File classDir, String className, boolean useJavaUtilZip)53 void test(File classDir, String className, boolean useJavaUtilZip) throws Exception { 54 // javac should really not be using system properties like this 55 // -- it should really be using (hidden) options -- but until then 56 // take care to leave system properties as we find them, so as not 57 // to adversely affect other tests that might follow. 58 String prev = System.getProperty("useJavaUtilZip"); 59 setProperty("useJavaUtilZip", (useJavaUtilZip ? "true" : null)); 60 try { 61 File zipFile = zip(classDir, new File(classDir + ".zip")); 62 javap("-classpath", zipFile.getPath(), className); 63 64 if (!zipFile.delete()) 65 throw new Exception("failed to delete " + zipFile); 66 } finally { 67 setProperty("useJavaUtilZip", prev); 68 } 69 } 70 writeTestFile(String name)71 File writeTestFile(String name) throws IOException { 72 File f = new File(name + ".java"); 73 PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f))); 74 out.println("class " + name + " { }"); 75 out.close(); 76 return f; 77 } 78 compileTestFile(File classDir, File file)79 void compileTestFile(File classDir, File file) { 80 int rc = com.sun.tools.javac.Main.compile( 81 new String[] { "-d", classDir.getPath(), file.getPath() }); 82 if (rc != 0) 83 throw new Error("compilation failed. rc=" + rc); 84 } 85 zip(File dir, File zipFile)86 File zip(File dir, File zipFile) throws IOException { 87 ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile)); 88 for (File file: dir.listFiles()) { 89 if (file.isFile()) { 90 byte[] data = new byte[(int) file.length()]; 91 DataInputStream in = new DataInputStream(new FileInputStream(file)); 92 in.readFully(data); 93 in.close(); 94 zipOut.putNextEntry(new ZipEntry(file.getName())); 95 zipOut.write(data, 0, data.length); 96 zipOut.closeEntry(); 97 } 98 } 99 zipOut.close(); 100 return zipFile; 101 } 102 javap(String... args)103 String javap(String... args) { 104 StringWriter sw = new StringWriter(); 105 PrintWriter out = new PrintWriter(sw); 106 int rc = com.sun.tools.javap.Main.run(args, out); 107 if (rc != 0) 108 throw new Error("javap failed. rc=" + rc); 109 out.close(); 110 return sw.toString(); 111 } 112 setProperty(String key, String value)113 void setProperty(String key, String value) { 114 if (value != null) 115 System.setProperty(key, value); 116 else 117 System.getProperties().remove(key); 118 } 119 } 120