1 /*
   2  * Copyright (c) 2016, 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 import java.io.Serializable;
  25 import java.lang.invoke.*;
  26 import java.util.concurrent.Callable;
  27 
  28 /**
  29  * @test
  30  * @summary StringConcatFactory exactness check produces bad bytecode when a non-arg concat is requested
  31  * @bug 8148787
  32  *
  33  * @compile StringConcatFactoryEmptyMethods.java
  34  *
  35  * @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT  -Djava.lang.invoke.stringConcat.debug=true StringConcatFactoryEmptyMethods
  36  *
  37 */
  38 public class StringConcatFactoryEmptyMethods {
  39 
  40     public static void main(String[] args) throws Throwable {
  41         StringConcatFactory.makeConcat(
  42             MethodHandles.lookup(),
  43             "foo",
  44             MethodType.methodType(String.class)
  45         );
  46 
  47         StringConcatFactory.makeConcatWithConstants(
  48             MethodHandles.lookup(),
  49             "foo",
  50             MethodType.methodType(String.class),
  51             ""
  52         );
  53     }
  54 
  55 }