# HG changeset patch # User mcimadamore # Date 1301657413 -3600 # Node ID b945b846c9795174736f484a23f7d5887836bd52 # Parent c55928005af450f27ed4753a8005627dbdca8e66 7032633: javac -Xlint:all warns about flush() within try on an auto-closeable resource Summary: missing name check before calling MethodSymbol.overrides causes wrong warnings to be issued Reviewed-by: jjg diff -r c55928005af4 -r b945b846c979 src/share/classes/com/sun/tools/javac/comp/Attr.java --- a/src/share/classes/com/sun/tools/javac/comp/Attr.java Wed Mar 30 18:32:16 2011 -0700 +++ b/src/share/classes/com/sun/tools/javac/comp/Attr.java Fri Apr 01 12:30:13 2011 +0100 @@ -2289,6 +2289,7 @@ sitesym.kind == VAR && ((VarSymbol)sitesym).isResourceVariable() && sym.kind == MTH && + sym.name.equals(names.close) && sym.overrides(syms.autoCloseableClose, sitesym.type.tsym, types, true) && env.info.lint.isEnabled(LintCategory.TRY)) { log.warning(LintCategory.TRY, tree, "try.explicit.close.call"); diff -r c55928005af4 -r b945b846c979 test/tools/javac/TryWithResources/T7032633.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/TryWithResources/T7032633.java Fri Apr 01 12:30:13 2011 +0100 @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2011, 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 7032633 + * @summary javac -Xlint:all warns about flush() within try on an auto-closeable resource + * @compile -Xlint:try -Werror T7032633.java + */ + +import java.io.IOException; +import java.io.OutputStream; + +public class T7032633 { + void test() throws IOException { + try (OutputStream out = System.out) { + out.flush(); + } + } +}