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8056984: Exception in compiler: java.lang.AssertionError: isSubClass T

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Must use type variable's captured bound as a method receiver, instead of the type variable itself, while checking if deferred attribution is needed.

Reviewed-by: mcimadamore, vromero
This commit is contained in:
Jan Lahoda 2014-09-08 10:50:59 +02:00
parent 49469c49d0
commit f211cac0cd
2 changed files with 47 additions and 0 deletions
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6
langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/DeferredAttr.java
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@ -1351,6 +1351,12 @@ public class DeferredAttr extends JCTree.Visitor {
site = env.enclClass.sym.type;
}
while (site.hasTag(TYPEVAR)) {
site = site.getUpperBound();
}
site = types.capture(site);
List<Type> args = rs.dummyArgs(tree.args.length());
Name name = TreeInfo.name(tree.meth);

41
langtools/test/tools/javac/lambda/T8056984.java Normal file
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@ -0,0 +1,41 @@
/*
* 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 8056984
* @summary Ensure that method resolution runs over a captured type variables when checking if
* deferred attribution is needed
* @compile T8056984.java
*/
class T8056984<T1 extends B&C, T2 extends T1> {
public T8056984(T1 t1, T2 t2) {
System.err.println(t1.hashCode());
System.err.println(t2.hashCode());
}
}
class B {
}
interface C {
public int hashCode();
}