1 /* 2 * Copyright (c) 2013, 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 /* 25 * @test 26 * @bug 8009582 27 * @summary Method reference generic constructor gives: IllegalArgumentException: Invalid lambda deserialization 28 * @author Robert Field 29 * @run main GenericMethodRefImplClass 30 */ 31 32 import java.io.*; 33 import java.util.*; 34 35 public class GenericMethodRefImplClass { 36 37 static int assertionCount = 0; 38 assertTrue(boolean cond)39 static void assertTrue(boolean cond) { 40 assertionCount++; 41 if (!cond) 42 throw new AssertionError(); 43 } 44 main(String[] args)45 public static void main(String[] args) throws Exception { 46 try { 47 // Write lambdas out 48 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 49 ObjectOutput out = new ObjectOutputStream(baos); 50 51 write(out, HashMap::new ); 52 out.flush(); 53 out.close(); 54 55 // Read them back 56 ByteArrayInputStream bais = 57 new ByteArrayInputStream(baos.toByteArray()); 58 ObjectInputStream in = new ObjectInputStream(bais); 59 readIt(in); 60 in.close(); 61 } catch (IOException e) { 62 e.printStackTrace(); 63 throw e; 64 } 65 assertTrue(assertionCount == 1); 66 } 67 write(ObjectOutput out, GenericMethodRefImplClassLSI lamb)68 static void write(ObjectOutput out, GenericMethodRefImplClassLSI lamb) throws IOException { 69 out.writeObject(lamb); 70 } 71 readIt(ObjectInputStream in)72 static void readIt(ObjectInputStream in) throws IOException, ClassNotFoundException { 73 GenericMethodRefImplClassLSI ls = (GenericMethodRefImplClassLSI) in.readObject(); 74 Map result = ls.convert(); 75 assertTrue(result.getClass().getName().equals("java.util.HashMap")); 76 } 77 } 78 79 interface GenericMethodRefImplClassLSI extends Serializable { convert()80 Map convert(); 81 } 82