jdk8-mips64-public/langtools: test/tools/javap/T4459541.java@4a48f3173534

     1 /*

     2  * Copyright (c) 2008, 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  */

    24 /*

    25  * @test

    26  * @bug 4459541

    27  * @summary "javap -l" shows line numbers as signed short; they should be unsigned.

    28  */

    30 import java.io.*;

    32 public class T4459541 {

    33     public static void main(String[] args) throws Exception {

    34         new T4459541().run();

    35     }

    37     public void run() throws IOException {

    38         File javaFile = writeTestFile();

    39         File classFile = compileTestFile(javaFile);

    40         String output = javap(classFile);

    41         verify(output);

    42     }

    44     File writeTestFile() throws IOException {

    45         File f = new File("Test.java");

    46         out = new PrintWriter(new BufferedWriter(new FileWriter(f)));

    47         println("class Test {");

    48         println("void begin(int i) {");

    49         println("i++;");

    50         println("i++;");

    51         println("}");

    52         while (line < 32750)

    53             println("// " + line);

    54         println("void before_32767(int i) {");

    55         println("i++;");

    56         println("i++;");

    57         println("}");

    58         while (line < 32768-4)

    59             println("// " + line);

    60         println("void straddle_32768(int i) {");

    61         while (line < 32768+4)

    62             println("i++;");

    63         println("}");

    64         while (line < 65520)

    65             println("// " + line);

    66         println("void between_32768_and_65536(int i) {");

    67         println("i++;");

    68         println("i++;");

    69         println("}");

    70         while (line < 65536-4)

    71             println("// " + line);

    72         println("void straddle_65536(int i) {");

    73         while (line < 65536+4)

    74             println("i++;");

    75         println("}");

    76         println("}");

    77         out.close();

    78         return f;

    79     }

    81     File compileTestFile(File f) {

    82         int rc = com.sun.tools.javac.Main.compile(new String[] { f.getPath() });

    83         if (rc != 0)

    84             throw new Error("compilation failed. rc=" + rc);

    85         String path = f.getPath();

    86         return new File(path.substring(0, path.length() - 5) + ".class");

    87     }

    89     String javap(File f) {

    90         StringWriter sw = new StringWriter();

    91         PrintWriter out = new PrintWriter(sw);

    92         int rc = com.sun.tools.javap.Main.run(new String[] { "-l", f.getPath() }, out);

    93         if (rc != 0)

    94             throw new Error("javap failed. rc=" + rc);

    95         out.close();

    96         return sw.toString();

    97     }

    99     void verify(String output) {

   100         System.out.println(output);

   101         if (output.indexOf("-") >= 0)

   102             throw new Error("- found in output");

   103     }

   105     void println(String text) {

   106         out.println(text);

   107         line++;

   108     }

   110     PrintWriter out;

   111     int line = 1;

   112 }

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