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 /* @test
  25  * @bug 8031502
  26  * @summary JSR292: IncompatibleClassChangeError in LambdaForm for CharSequence.toString() method handle type converter
  27  * @compile ObjectMethodInInterfaceTest.java
  28  * @run main/othervm -Djava.lang.invoke.MethodHandle.COMPILE_THRESHOLD=0 test.java.lang.invoke.ObjectMethodInInterfaceTest
  29  */
  30 package test.java.lang.invoke;
  31 
  32 import java.lang.invoke.MethodHandle;
  33 import java.lang.invoke.MethodHandles;
  34 import java.lang.invoke.MethodType;
  35 
  36 public class ObjectMethodInInterfaceTest {
  37     public static void main(String[] args) throws Throwable {
  38         MethodHandle mh = MethodHandles.lookup().findVirtual(CharSequence.class, "toString", MethodType.methodType(String.class));
  39         MethodType mt = MethodType.methodType(Object.class, CharSequence.class);
  40         mh = mh.asType(mt);
  41 
  42         Object res = mh.invokeExact((CharSequence)"123");
  43 
  44         System.out.println("TEST PASSED");
  45     }
  46 }