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8077667: 'variable may not have been initialized' error for parameter in lambda function

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JDK-8077667: Fix bogus diagnostic about lambda parameter not being initialized

Reviewed-by: mcimadamore
This commit is contained in:
Srikanth Adayapalam 2015-05-30 06:17:50 +05:30
parent 1b685e4aa7
commit 1a5f839adc
2 changed files with 49 additions and 0 deletions
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2
langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java
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@ -2270,6 +2270,7 @@ public class Flow {
final Bits prevUninits = new Bits(uninits);
final Bits prevInits = new Bits(inits);
int returnadrPrev = returnadr;
int nextadrPrev = nextadr;
ListBuffer<AssignPendingExit> prevPending = pendingExits;
try {
returnadr = nextadr;
@ -2291,6 +2292,7 @@ public class Flow {
uninits.assign(prevUninits);
inits.assign(prevInits);
pendingExits = prevPending;
nextadr = nextadrPrev;
}
}

47
langtools/test/tools/javac/lambda/LambdaParameterNeedsNoInitTest.java Normal file
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@ -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<String> synonymComparator = a -> a.isEmpty();
Inner() {
if (true) {
return;
}
synonymComparator.test("");
}
}
}