# HG changeset patch # User rfield # Date 1362673573 28800 # Node ID 4f7fe060522f741149a848abfb59e7b7e14a3c9f # Parent 49b3f71982f6b4de9c2ff57c96ddc025c11ee77e 8009582: Method reference generic constructor gives: IllegalArgumentException: Invalid lambda deserialization Reviewed-by: mcimadamore diff -r 49b3f71982f6 -r 4f7fe060522f langtools/src/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java --- a/langtools/src/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java Thu Mar 07 10:12:13 2013 +0000 +++ b/langtools/src/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java Thu Mar 07 08:26:13 2013 -0800 @@ -558,7 +558,7 @@ String functionalInterfaceClass = classSig(targetType); String functionalInterfaceMethodName = samSym.getSimpleName().toString(); String functionalInterfaceMethodSignature = methodSig(types.erasure(samSym.type)); - String implClass = classSig(refSym.owner.type); + String implClass = classSig(types.erasure(refSym.owner.type)); String implMethodName = refSym.getQualifiedName().toString(); String implMethodSignature = methodSig(types.erasure(refSym.type)); diff -r 49b3f71982f6 -r 4f7fe060522f langtools/test/tools/javac/lambda/GenericMethodRefImplClass.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/langtools/test/tools/javac/lambda/GenericMethodRefImplClass.java Thu Mar 07 08:26:13 2013 -0800 @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 8009582 + * @summary Method reference generic constructor gives: IllegalArgumentException: Invalid lambda deserialization + * @author Robert Field + * @run main GenericMethodRefImplClass + */ + +import java.io.*; +import java.util.*; + +public class GenericMethodRefImplClass { + + static int assertionCount = 0; + + static void assertTrue(boolean cond) { + assertionCount++; + if (!cond) + throw new AssertionError(); + } + + public static void main(String[] args) throws Exception { + try { + // Write lambdas out + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + ObjectOutput out = new ObjectOutputStream(baos); + + write(out, HashMap::new ); + out.flush(); + out.close(); + + // Read them back + ByteArrayInputStream bais = + new ByteArrayInputStream(baos.toByteArray()); + ObjectInputStream in = new ObjectInputStream(bais); + readIt(in); + in.close(); + } catch (IOException e) { + e.printStackTrace(); + throw e; + } + assertTrue(assertionCount == 1); + } + + static void write(ObjectOutput out, GenericMethodRefImplClassLSI lamb) throws IOException { + out.writeObject(lamb); + } + + static void readIt(ObjectInputStream in) throws IOException, ClassNotFoundException { + GenericMethodRefImplClassLSI ls = (GenericMethodRefImplClassLSI) in.readObject(); + Map result = ls.convert(); + assertTrue(result.getClass().getName().equals("java.util.HashMap")); + } +} + +interface GenericMethodRefImplClassLSI extends Serializable { + Map convert(); +}