1 /*

     2  * Copyright (c) 2010, 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 4942232

    27  * @summary missing param class processes without error

    28  * @build ParamClassTest Test

    29  * @run main Test

    30  */

    31 

    32 import java.io.*;

    33 import java.util.*;

    34 

    35 public class Test {

    36     public static void main(String... args) throws Exception {

    37         new Test().run();

    38     }

    39 

    40     void run() throws Exception {

    41         File testSrc = new File(System.getProperty("test.src"));

    42         File testClasses = new File(System.getProperty("test.classes"));

    43 

    44         // standard use of javah on valid class file

    45         String[] test1Args = {

    46             "-d", mkdir("test1/out").getPath(),

    47             "-classpath", testClasses.getPath(),

    48             "ParamClassTest"

    49         };

    50         test(test1Args, 0);

    51 

    52         // extended use of javah on valid source file

    53         String[] test2Args = {

    54             "-d", mkdir("test2/out").getPath(),

    55             "-classpath", testSrc.getPath(),

    56             "ParamClassTest"

    57         };

    58         test(test2Args, 0);

    59 

    60         // javah on class file with missing referents

    61         File test3Classes = mkdir("test3/classes");

    62         copy(new File(testClasses, "ParamClassTest.class"), test3Classes);

    63         String[] test3Args = {

    64             "-d", mkdir("test3/out").getPath(),

    65             "-classpath", test3Classes.getPath(),

    66             "ParamClassTest"

    67         };

    68         test(test3Args, 1);

    69 

    70         // javah on source file with missing referents

    71         File test4Src = mkdir("test4/src");

    72         String paramClassTestSrc = readFile(new File(testSrc, "ParamClassTest.java"));

    73         writeFile(new File(test4Src, "ParamClassTest.java"),

    74                 paramClassTestSrc.replaceAll("class Param \\{\\s+\\}", ""));

    75         String[] test4Args = {

    76             "-d", mkdir("test4/out").getPath(),

    77             "-classpath", test4Src.getPath(),

    78             "ParamClassTest"

    79         };

    80         test(test4Args, 15);

    81 

    82         if (errors > 0)

    83             throw new Exception(errors + " errors occurred");

    84     }

    85 

    86     void test(String[] args, int expect) {

    87         System.err.println("test: " + Arrays.asList(args));

    88         int rc = javah(args);

    89         if (rc != expect)

    90             error("Unexpected return code: " + rc + "; expected: " + expect);

    91     }

    92 

    93     int javah(String... args) {

    94         StringWriter sw = new StringWriter();

    95         PrintWriter pw = new PrintWriter(sw);

    96         int rc = com.sun.tools.javah.Main.run(args, pw);

    97         pw.close();

    98         String out = sw.toString();

    99         if (!out.isEmpty())

   100             System.err.println(out);

   101         return rc;

   102     }

   103 

   104     File mkdir(String path) {

   105         File f = new File(path);

   106         f.mkdirs();

   107         return f;

   108     }

   109 

   110     void copy(File from, File to) throws IOException {

   111         if (to.isDirectory())

   112             to = new File(to, from.getName());

   113         try (DataInputStream in = new DataInputStream(new FileInputStream(from));

   114                 FileOutputStream out = new FileOutputStream(to)) {

   115             byte[] buf = new byte[(int) from.length()];

   116             in.readFully(buf);

   117             out.write(buf);

   118         }

   119     }

   120 

   121     String readFile(File f) throws IOException {

   122         try (DataInputStream in = new DataInputStream(new FileInputStream(f))) {

   123             byte[] buf = new byte[(int) f.length()];

   124             in.readFully(buf);

   125             return new String(buf);

   126         }

   127     }

   128 

   129     void writeFile(File f, String body) throws IOException {

   130         try (FileWriter out = new FileWriter(f)) {

   131             out.write(body);

   132         }

   133     }

   134 

   135     void error(String msg) {

   136         System.err.println(msg);

   137         errors++;

   138     }

   139 

   140     int errors;

   141 }