infernap12/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2026-02-26 02:00:12 +00:00
Code Issues Packages Projects Releases Wiki Activity

8043926: javac, code valid in 7 is not compiling for 8

Browse Source 
Type-containment doesn't handle inference variables correctly

Reviewed-by: vromero, dlsmith
This commit is contained in:
Maurizio Cimadamore 2014-07-08 15:42:04 +01:00
parent 3c5b32658b
commit 15cfa4aac9
2 changed files with 45 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
langtools/src/share/classes/com/sun/tools/javac/code/Types.java
View File

@ -1312,7 +1312,8 @@ public class Types {
UndetVar undetvar = (UndetVar)t;
WildcardType wt = (WildcardType)s;
switch(wt.kind) {
case UNBOUND: //similar to ? extends Object
case UNBOUND:
break;
case EXTENDS: {
Type bound = wildUpperBound(s);
undetvar.addBound(InferenceBound.UPPER, bound, this);

43
langtools/test/tools/javac/generics/inference/8043926/T8043926.java Normal file
View File

@ -0,0 +1,43 @@
/*
* Copyright (c) 2014, 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 8043926
* @summary javac, code valid in 7 is not compiling for 8
* @compile T8043926.java
*/
class T8043926 {
interface Iface<T1> {}
static class Impl implements Iface<Impl> {}
static class Acceptor<T2 extends Iface<T2>> {
public Acceptor(T2 obj) {}
}
void test(Impl impl) {
Acceptor<?> acceptor1 = new Acceptor<>(impl);
Acceptor<? extends Object> acceptor2 = new Acceptor<>(impl);
}
}