OpenJDK / bsd-port / jdk9 / langtools
changeset 990:1092b67b3cad
7034495: Javac asserts on usage of wildcards in bounds
Summary: Problem with intersection types and wildcards causing javac to crash
Reviewed-by: jjg
| author | mcimadamore |
|---|---|
| date | Fri, 29 Apr 2011 16:05:56 +0100 |
| parents | 9a847a77205d |
| children | dc3d9ef880a1 |
| files | src/share/classes/com/sun/tools/javac/code/Types.java test/tools/javac/generics/wildcards/7034495/T7034495.java test/tools/javac/generics/wildcards/7034495/T7034495.out |
| diffstat | 3 files changed, 45 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/src/share/classes/com/sun/tools/javac/code/Types.java Fri Apr 29 16:05:29 2011 +0100 +++ b/src/share/classes/com/sun/tools/javac/code/Types.java Fri Apr 29 16:05:56 2011 +0100 @@ -412,6 +412,7 @@ return s.tag == BOT || s.tag == CLASS || s.tag == ARRAY || s.tag == TYPEVAR; + case WILDCARD: //we shouldn't be here - avoids crash (see 7034495) case NONE: return false; default:
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/generics/wildcards/7034495/T7034495.java Fri Apr 29 16:05:56 2011 +0100 @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2008, 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 7034495 + * @summary Javac asserts on usage of wildcards in bounds + * @compile/fail/ref=T7034495.out -XDrawDiagnostics T7034495.java + */ +class T7034495 { + + interface A<T> { + T foo(); + } + + interface B<T> { + T foo(); + } + + interface C<T extends A<?> & B<?>> { } + +}