1 /*
2  * Copyright (c) 2009, 2016, 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 6866657
27  * @summary add byteLength() method to primary classfile types
28  * @modules jdk.jdeps/com.sun.tools.classfile
29  *          jdk.jdeps/com.sun.tools.javap
30  */
31 
32 import java.io.*;
33 import java.util.*;
34 import javax.tools.*;
35 import com.sun.tools.javap.*;
36 
37 public class T6866657
38 {
main(String... args)39     public static void main(String... args) {
40         new T6866657().run();
41     }
42 
run()43     void run() {
44         verify("java.lang.Object");
45         verify("java.lang.String");
46         verify("java.util.List");
47         verify("java.util.ArrayList");
48         if (errors > 0)
49             throw new Error(errors + " found.");
50     }
51 
verify(String className)52     void verify(String className) {
53         try {
54             PrintWriter log = new PrintWriter(System.out);
55             JavaFileManager fileManager = JavapFileManager.create(null, log);
56             JavaFileObject fo = fileManager.getJavaFileForInput(StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS);
57             if (fo == null) {
58                 error("Can't find " + className);
59             } else {
60                 JavapTask t = new JavapTask(log, fileManager, null);
61                 t.handleOptions(new String[] { "-sysinfo", className });
62                 JavapTask.ClassFileInfo cfInfo = t.read(fo);
63                 expectEqual(cfInfo.cf.byteLength(), cfInfo.size);
64             }
65         } catch (Exception e) {
66             e.printStackTrace();
67             error("Exception: " + e);
68         }
69     }
70 
expectEqual(int found, int expected)71     void expectEqual(int found, int expected) {
72         if (found != expected)
73             error("bad value found: " + found + " expected: " + expected);
74     }
75 
error(String msg)76     void error(String msg) {
77         System.err.println(msg);
78         errors++;
79     }
80 
81     int errors;
82 }
83 
84