1 /* 2 * Copyright (c) 2008, 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 4459541 27 * @summary "javap -l" shows line numbers as signed short; they should be unsigned. 28 * @modules jdk.compiler 29 */ 30 31 import java.io.*; 32 33 public class T4459541 { 34 public static void main(String[] args) throws Exception { 35 new T4459541().run(); 36 } 37 38 public void run() throws IOException { 39 File javaFile = writeTestFile(); 40 File classFile = compileTestFile(javaFile); 41 String output = javap(classFile); 42 verify(output); 43 } 44 45 File writeTestFile() throws IOException { 46 File f = new File("Test.java"); 47 out = new PrintWriter(new BufferedWriter(new FileWriter(f))); 48 println("class Test {"); 49 println("void begin(int i) {"); 50 println("i++;"); 51 println("i++;"); 52 println("}"); 53 while (line < 32750) 54 println("// " + line); 55 println("void before_32767(int i) {"); 56 println("i++;"); 57 println("i++;"); 58 println("}"); 59 while (line < 32768-4) 60 println("// " + line); 61 println("void straddle_32768(int i) {"); 62 while (line < 32768+4) 63 println("i++;"); 64 println("}"); 65 while (line < 65520) 66 println("// " + line); 67 println("void between_32768_and_65536(int i) {"); 68 println("i++;"); 69 println("i++;"); 70 println("}"); 71 while (line < 65536-4) 72 println("// " + line); 73 println("void straddle_65536(int i) {"); 74 while (line < 65536+4) 75 println("i++;"); 76 println("}"); 77 println("}"); 78 out.close(); 79 return f; 80 } 81 82 File compileTestFile(File f) { 83 int rc = com.sun.tools.javac.Main.compile(new String[] { f.getPath() }); 84 if (rc != 0) 85 throw new Error("compilation failed. rc=" + rc); 86 String path = f.getPath(); 87 return new File(path.substring(0, path.length() - 5) + ".class"); 88 } 89 90 String javap(File f) { 91 StringWriter sw = new StringWriter(); 92 PrintWriter out = new PrintWriter(sw); 93 int rc = com.sun.tools.javap.Main.run(new String[] { "-l", f.getPath() }, out); 94 if (rc != 0) 95 throw new Error("javap failed. rc=" + rc); 96 out.close(); 97 return sw.toString(); 98 } 99 100 void verify(String output) { 101 System.out.println(output); 102 if (output.indexOf("-") >= 0) 103 throw new Error("- found in output"); 104 } 105 106 void println(String text) { 107 out.println(text); 108 line++; 109 } 110 111 PrintWriter out; 112 int line = 1; 113 }