1 /*
   2  * Copyright (c) 2020, 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 jdk.test.lib.compiler.InMemoryJavaCompiler;
  25 import jdk.internal.misc.Unsafe;
  26 
  27 public class UnsafeAndLambdaApp {
  28 
  29     static byte klassbuf[] = InMemoryJavaCompiler.compile("LambdaHello",
  30         "public class LambdaHello { " +
  31         "    public LambdaHello() { " +
  32         "        doit(() -> { " +
  33         "            System.out.println(\"Hello from Lambda\"); " +
  34         "        }); " +
  35         "    } " +
  36         "    static void doit (Runnable r) { " +
  37         "        r.run(); " +
  38         "    } " +
  39         "} ");
  40 
  41     public static void main(String args[]) throws Exception {
  42         Unsafe unsafe = Unsafe.getUnsafe();
  43 
  44         Class klass = unsafe.defineAnonymousClass(UnsafeAndLambdaApp.class, klassbuf, new Object[0]);
  45         try {
  46             Object obj = klass.newInstance();
  47             // If we come to here, LambdaMetafactory has probably been modified
  48             // to support vm-anon classes. In that case, we will need more tests for CDS.
  49             throw new RuntimeException("Unexpected support for lambda classes in VM anonymous classes");
  50         } catch (java.lang.InternalError expected) {
  51             System.out.println("Caught expected java.lang.InternalError");
  52         }
  53     }
  54 }