1 /*
   2  * Copyright (c) 2019, 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  * @library /test/lib
  27  * @build jdk.test.lib.Utils
  28  *        jdk.test.lib.compiler.CompilerUtils
  29  *        SelfReferenceDescriptor
  30  * @run main/othervm -Xverify:remote SelfReferenceDescriptor
  31  * @summary Test that a hidden class cannot be referenced in descriptor
  32  */
  33 
  34 import java.io.ByteArrayOutputStream;
  35 import java.io.File;
  36 import java.io.FileInputStream;
  37 import java.io.IOException;
  38 import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*;
  39 import static java.lang.invoke.MethodHandles.lookup;
  40 
  41 import java.nio.file.Files;
  42 import java.nio.file.Path;
  43 import java.nio.file.Paths;
  44 import java.util.Arrays;
  45 import java.util.stream.Stream;
  46 
  47 import jdk.test.lib.compiler.CompilerUtils;
  48 
  49 import jdk.test.lib.Utils;
  50 
  51 /* package-private */ interface Test {
  52   void test();
  53 }
  54 
  55 public class SelfReferenceDescriptor {
  56 
  57     private static final Path SRC_DIR = Paths.get(Utils.TEST_SRC);
  58     private static final Path CLASSES_DIR = Paths.get("classes");
  59 
  60     static void compileSources(Path sourceFile, String... options) throws IOException {
  61         Stream<String> ops = Stream.of("-cp", Utils.TEST_CLASSES + File.pathSeparator + CLASSES_DIR);
  62         if (options != null && options.length > 0) {
  63             ops = Stream.concat(ops, Arrays.stream(options));
  64         }
  65         if (!CompilerUtils.compile(sourceFile, CLASSES_DIR, ops.toArray(String[]::new))) {
  66             throw new RuntimeException("Compilation of the test failed: " + sourceFile);
  67         }
  68     }
  69 
  70     // Test that a hidden class cannot use its own name in a field
  71     // signature.
  72     public static void hiddenClassInFieldDescriptor() throws Exception {
  73         compileSources(SRC_DIR.resolve("SelfRefField.java"));
  74         Path path = CLASSES_DIR.resolve("SelfRefField.class");
  75         byte[] bytes = Files.readAllBytes(path);
  76         try {
  77             lookup().defineHiddenClass(bytes, false, NESTMATE);
  78             throw new RuntimeException("expected NCDFE in defining SelfRefField hidden class");
  79         } catch (NoClassDefFoundError e) {
  80             if (!e.getMessage().contains("SelfRefField")) throw e;
  81         }
  82     }
  83 
  84     // Test that a hidden class cannot use its own name in a method
  85     // signature.
  86     public static void hiddenClassInMethodDescriptor() throws Exception {
  87         compileSources(SRC_DIR.resolve("SelfRefMethod.java"));
  88         Path path = CLASSES_DIR.resolve("SelfRefMethod.class");
  89         byte[] bytes = Files.readAllBytes(path);
  90         try {
  91             lookup().defineHiddenClass(bytes, false, NESTMATE);
  92             throw new RuntimeException("expected NCDFE in defining SelfRefMethod hidden class");
  93         } catch (NoClassDefFoundError e) {
  94             if (!e.getMessage().contains("SelfRefMethod")) throw e;
  95         }
  96     }
  97 
  98     public static void main(String... args) throws Exception {
  99         hiddenClassInMethodDescriptor();
 100         hiddenClassInFieldDescriptor();
 101     }
 102 }