1 /*
   2  * Copyright (c) 2009, 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 /*
  26  * @test
  27  * @bug 6866657
  28  * @summary add byteLength() method to primary classfile types
  29  * @modules jdk.jdeps/com.sun.tools.classfile
  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 {
  39     public static void main(String... args) {
  40         new T6866657().run();
  41     }
  42 
  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 
  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 
  71     void expectEqual(int found, int expected) {
  72         if (found != expected)
  73             error("bad value found: " + found + " expected: " + expected);
  74     }
  75 
  76     void error(String msg) {
  77         System.err.println(msg);
  78         errors++;
  79     }
  80 
  81     int errors;
  82 }
  83