--- /dev/null 2009-08-12 17:12:33.000000000 -0700 +++ new/jdk/src/share/classes/java/lang/AutoCloseable.java 2010-06-23 12:41:58.000000000 -0700 @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2009, 2010, 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. + */ + +package java.lang; + +/** + * A resource that must be closed when it is no longer needed. + * + * @author Josh Bloch + * @since 1.7 + */ +public interface AutoCloseable { + /** + * Close this resource, relinquishing any underlying resources. + * This method is invoked automatically by the automatic resource + * management block construct. + * + *

Classes implementing this method are strongly encouraged to + * be declared to throw more specific exceptions (or no exception + * at all, if the close cannot fail). + * + * @throws Exception if this resource cannot be closed + */ + void close() throws Exception; +}