# HG changeset patch # User sadayapalam # Date 1432946870 -19800 # Node ID c4c8cbd9b3b43ff12bafd7aa39787ef7801ab40e # Parent b99fa15b3717641a201466520c55dd4c395cd764 8077667: 'variable may not have been initialized' error for parameter in lambda function Summary: JDK-8077667: Fix bogus diagnostic about lambda parameter not being initialized Reviewed-by: mcimadamore diff -r b99fa15b3717 -r c4c8cbd9b3b4 langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java --- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java Fri May 29 17:15:10 2015 -0700 +++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java Sat May 30 06:17:50 2015 +0530 @@ -2270,6 +2270,7 @@ final Bits prevUninits = new Bits(uninits); final Bits prevInits = new Bits(inits); int returnadrPrev = returnadr; + int nextadrPrev = nextadr; ListBuffer prevPending = pendingExits; try { returnadr = nextadr; @@ -2291,6 +2292,7 @@ uninits.assign(prevUninits); inits.assign(prevInits); pendingExits = prevPending; + nextadr = nextadrPrev; } } diff -r b99fa15b3717 -r c4c8cbd9b3b4 langtools/test/tools/javac/lambda/LambdaParameterNeedsNoInitTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/langtools/test/tools/javac/lambda/LambdaParameterNeedsNoInitTest.java Sat May 30 06:17:50 2015 +0530 @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2015, 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 8077667 + * @summary Eliminate bogus error about lambda parameter not being initialized. + * @compile LambdaParameterNeedsNoInitTest.java + */ +import java.util.function.Predicate; + +public class LambdaParameterNeedsNoInitTest { + + public static void main(String[] args) { + new Inner(); + } + + private static class Inner { + Predicate synonymComparator = a -> a.isEmpty(); + Inner() { + if (true) { + return; + } + synonymComparator.test(""); + } + } +}