1 /*
   2  * Copyright (c) 2014, 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 package p1;
  25 
  26 import p2.T3;
  27 
  28 import java.lang.invoke.MethodHandle;
  29 import java.lang.invoke.MethodHandles;
  30 import java.lang.invoke.MethodHandles.Lookup;
  31 import java.lang.invoke.MethodType;
  32 import java.util.concurrent.Callable;
  33 
  34 class T1 {
  35     protected        void m1() {}
  36     protected static void m2() {}
  37 }
  38 
  39 public class T2 extends T1 {
  40     public static void main(String[] args) throws Throwable {
  41         Lookup LOOKUP = T3.lookup();
  42         Class<IllegalAccessException> IAE = IllegalAccessException.class;
  43 
  44         assertFailure(IAE, () -> LOOKUP.findVirtual(T1.class, "m1", MethodType.methodType(void.class)));
  45         assertFailure(IAE, () -> LOOKUP.findStatic(T1.class, "m2", MethodType.methodType(void.class)));
  46 
  47         assertSuccess(() -> LOOKUP.findVirtual(T2.class, "m1", MethodType.methodType(void.class)));
  48         assertSuccess(() -> LOOKUP.findVirtual(T3.class, "m1", MethodType.methodType(void.class)));
  49 
  50         assertSuccess(() -> LOOKUP.findStatic(T2.class, "m2", MethodType.methodType(void.class)));
  51         assertSuccess(() -> LOOKUP.findStatic(T3.class, "m2", MethodType.methodType(void.class)));
  52 
  53         assertFailure(IAE, () -> LOOKUP.unreflect(T1.class.getDeclaredMethod("m1")));
  54         assertFailure(IAE, () -> LOOKUP.unreflect(T1.class.getDeclaredMethod("m2")));
  55 
  56         System.out.println("TEST PASSED");
  57     }
  58 
  59     public static void assertFailure(Class<? extends Throwable> expectedError, Callable r) {
  60         try {
  61             r.call();
  62         } catch(Throwable e) {
  63             if (expectedError.isAssignableFrom(e.getClass())) {
  64                 return; // expected error
  65             } else {
  66                 throw new Error("Unexpected error type: "+e.getClass()+"; expected type: "+expectedError, e);
  67             }
  68         }
  69         throw new Error("No error");
  70     }
  71 
  72     public static void assertSuccess(Callable r) {
  73         try {
  74             r.call();
  75         } catch(Throwable e) {
  76             throw new Error("Unexpected error", e);
  77         }
  78     }
  79 }