Mercurial > hg > icedtea8-forest > langtools
changeset 3420:3a62189765a8 jdk8u131-b08
8168774: Polymorhic signature method check crashes javac
Summary: Check for polysig method assumes arity is greater than zero
Reviewed-by: vromero
author | mcimadamore |
---|---|
date | Thu, 05 Jan 2017 18:58:06 +0000 |
parents | 3c0bf89ce69d |
children | 2f2c4931d13c |
files | src/share/classes/com/sun/tools/javac/code/Types.java test/tools/javac/meth/BadPolySig.java |
diffstat | 2 files changed, 38 insertions(+), 1 deletions(-) [+] |
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--- a/src/share/classes/com/sun/tools/javac/code/Types.java Mon Feb 13 12:00:17 2017 -0800 +++ b/src/share/classes/com/sun/tools/javac/code/Types.java Thu Jan 05 18:58:06 2017 +0000 @@ -1067,7 +1067,7 @@ List<Type> argtypes = msym.type.getParameterTypes(); return (msym.flags_field & NATIVE) != 0 && msym.owner == syms.methodHandleType.tsym && - argtypes.tail.tail == null && + argtypes.length() == 1 && argtypes.head.hasTag(TypeTag.ARRAY) && msym.type.getReturnType().tsym == syms.objectType.tsym && ((ArrayType)argtypes.head).elemtype.tsym == syms.objectType.tsym;
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/meth/BadPolySig.java Thu Jan 05 18:58:06 2017 +0000 @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2017, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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 8168774 + * @summary Polymorhic signature method check crashes javac + * @compile BadPolySig.java + */ + +package java.lang.invoke; + +class MethodHandle { + native Object m(); +}