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 /*
26  * @test
27  * @bug 6866657
28  * @summary add byteLength() method to primary classfile types
29  */
30 
31 import java.io.*;
32 import java.util.*;
33 import javax.tools.*;
34 import com.sun.tools.javap.*;
35 
36 public class T6866657
37 {
main(String... args)38     public static void main(String... args) {
39         new T6866657().run();
40     }
41 
run()42     void run() {
43         verify("java.lang.Object");
44         verify("java.lang.String");
45         verify("java.util.List");
46         verify("java.util.ArrayList");
47         if (errors > 0)
48             throw new Error(errors + " found.");
49     }
50 
verify(String className)51     void verify(String className) {
52         try {
53             PrintWriter log = new PrintWriter(System.out);
54             JavaFileManager fileManager = JavapFileManager.create(null, log);
55             JavaFileObject fo = fileManager.getJavaFileForInput(StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS);
56             if (fo == null) {
57                 error("Can't find " + className);
58             } else {
59                 JavapTask t = new JavapTask(log, fileManager, null);
60                 t.handleOptions(new String[] { "-sysinfo", className });
61                 JavapTask.ClassFileInfo cfInfo = t.read(fo);
62                 expectEqual(cfInfo.cf.byteLength(), cfInfo.size);
63             }
64         } catch (Exception e) {
65             e.printStackTrace();
66             error("Exception: " + e);
67         }
68     }
69 
expectEqual(int found, int expected)70     void expectEqual(int found, int expected) {
71         if (found != expected)
72             error("bad value found: " + found + " expected: " + expected);
73     }
74 
error(String msg)75     void error(String msg) {
76         System.err.println(msg);
77         errors++;
78     }
79 
80     int errors;
81 }
82 
83