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 }