1 /*
   2  * Copyright (c) 2017, 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  * @summary check that members of abtract datum has protected access
  27  * @modules jdk.jdeps/com.sun.tools.classfile
  28  *          jdk.compiler/com.sun.tools.javac.util
  29  * @compile CheckDatumMembersAccess.java
  30  * @run main CheckDatumMembersAccess
  31  */
  32 
  33 import com.sun.tools.classfile.ClassFile;
  34 
  35 import java.io.File;
  36 
  37 import com.sun.tools.classfile.AccessFlags;
  38 import com.sun.tools.classfile.Field;
  39 import com.sun.tools.classfile.Method;
  40 import com.sun.tools.javac.util.Assert;
  41 
  42 public class CheckDatumMembersAccess {
  43 
  44     record Datum(int field) {}
  45 
  46     public static void main(String args[]) throws Throwable {
  47         new CheckDatumMembersAccess().run();
  48     }
  49 
  50     void run() throws Throwable {
  51         checkNonAbstractDatum();
  52     }
  53 
  54     void checkNonAbstractDatum() throws Throwable {
  55         File testClasses = new File(System.getProperty("test.classes"));
  56         File file = new File(testClasses,
  57                 CheckDatumMembersAccess.class.getName() + "$Datum.class");
  58         ClassFile classFile = ClassFile.read(file);
  59         for (Field f : classFile.fields) {
  60             if (f.getName(classFile.constant_pool).equals("field")) {
  61                 Assert.check((f.access_flags.flags & (AccessFlags.ACC_FINAL)) != 0, "record fields should be final");
  62                 Assert.check((f.access_flags.flags & (AccessFlags.ACC_PRIVATE)) != 0, "record fields should be private");
  63             }
  64         }
  65     }
  66 }