1 /*
   2  * Copyright (c) 2008, 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  * @test
  26  * @bug 4975569 6622215 8034861
  27  * @summary javap doesn't print new flag bits
  28  * @modules jdk.compiler
  29  */
  30 
  31 import java.io.*;
  32 import java.util.*;
  33 import java.util.regex.Matcher;
  34 import java.util.regex.Pattern;
  35 
  36 public class T4975569 {
  37     private static final String NEW_LINE = System.getProperty("line.separator");
  38     private static final String TEST_CLASSES = System.getProperty("test.classes", ".");
  39 
  40     public static void main(String... args) {
  41         new T4975569().run();
  42     }
  43 
  44     void run() {
  45         verify(Anno.class.getName(), "flags: ACC_INTERFACE, ACC_ABSTRACT, ACC_ANNOTATION");
  46         verify(E.class.getName(),    "flags: ACC_FINAL, ACC_SUPER, ACC_ENUM");
  47         verify(S.class.getName(),    "flags: ACC_BRIDGE, ACC_SYNTHETIC",
  48                                      "InnerClasses:\n  static [# =\\w]+; +// ");
  49         verify(V.class.getName(),    "void m\\(java.lang.String...\\)",
  50                                      "flags: ACC_VARARGS");
  51         verify(Prot.class.getName(), "InnerClasses:\n  protected [# =\\w]+; +// ");
  52         verify(Priv.class.getName(), new String[]{"-p"},
  53                                      "InnerClasses:\n  private [# =\\w]+; +// ");
  54 
  55         if (errors > 0)
  56             throw new Error(errors + " found.");
  57     }
  58 
  59     void verify(String className, String[] flags, String... expects) {
  60         String output = javap(className, Arrays.asList(flags));
  61         for (String expect: expects) {
  62             Pattern expectPattern = Pattern.compile(expect);
  63             Matcher matcher = expectPattern.matcher(output);
  64             if (!matcher.find()) {
  65                 error(expect + " not found");
  66             }
  67         }
  68     }
  69 
  70     void verify(String className, String... expects) {
  71         verify(className, new String[0], expects);
  72     }
  73 
  74     int errors;
  75     void error(String msg) {
  76         System.err.println(msg.replace("\n", NEW_LINE));
  77         errors++;
  78     }
  79 
  80     String javap(String className, List<String> flags) {
  81         StringWriter sw = new StringWriter();
  82         PrintWriter out = new PrintWriter(sw);
  83         List<String> args = new ArrayList<>(flags);
  84         args.addAll(Arrays.asList("-v", "-classpath", TEST_CLASSES, className));
  85         int rc = com.sun.tools.javap.Main.run(args.toArray(new String[args.size()]), out);
  86         out.close();
  87         String output = sw.toString();
  88         System.err.println("class " + className);
  89         System.err.println(output);
  90 
  91         if (rc != 0)
  92             throw new Error("javap failed. rc=" + rc);
  93         return output.replaceAll(NEW_LINE, "\n");
  94     }
  95 
  96     List x() { return null; }
  97 
  98     class V { void m(String... args) { } }
  99     enum E { e }
 100     @interface Anno { }
 101     static class S extends T4975569 {
 102         ArrayList x() { return null; }
 103     }
 104 
 105     protected class Prot { }
 106     private class Priv { int i; }
 107 }
 108