1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/rt/emul/mini/src/main/java/java/lang/AutoCloseable.java Tue Feb 26 16:54:16 2013 +0100
1.3 @@ -0,0 +1,72 @@
1.4 +/*
1.5 + * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package java.lang;
1.30 +
1.31 +/**
1.32 + * A resource that must be closed when it is no longer needed.
1.33 + *
1.34 + * @author Josh Bloch
1.35 + * @since 1.7
1.36 + */
1.37 +public interface AutoCloseable {
1.38 + /**
1.39 + * Closes this resource, relinquishing any underlying resources.
1.40 + * This method is invoked automatically on objects managed by the
1.41 + * {@code try}-with-resources statement.
1.42 + *
1.43 + * <p>While this interface method is declared to throw {@code
1.44 + * Exception}, implementers are <em>strongly</em> encouraged to
1.45 + * declare concrete implementations of the {@code close} method to
1.46 + * throw more specific exceptions, or to throw no exception at all
1.47 + * if the close operation cannot fail.
1.48 + *
1.49 + * <p><em>Implementers of this interface are also strongly advised
1.50 + * to not have the {@code close} method throw {@link
1.51 + * InterruptedException}.</em>
1.52 + *
1.53 + * This exception interacts with a thread's interrupted status,
1.54 + * and runtime misbehavior is likely to occur if an {@code
1.55 + * InterruptedException} is {@linkplain Throwable#addSuppressed
1.56 + * suppressed}.
1.57 + *
1.58 + * More generally, if it would cause problems for an
1.59 + * exception to be suppressed, the {@code AutoCloseable.close}
1.60 + * method should not throw it.
1.61 + *
1.62 + * <p>Note that unlike the {@link java.io.Closeable#close close}
1.63 + * method of {@link java.io.Closeable}, this {@code close} method
1.64 + * is <em>not</em> required to be idempotent. In other words,
1.65 + * calling this {@code close} method more than once may have some
1.66 + * visible side effect, unlike {@code Closeable.close} which is
1.67 + * required to have no effect if called more than once.
1.68 + *
1.69 + * However, implementers of this interface are strongly encouraged
1.70 + * to make their {@code close} methods idempotent.
1.71 + *
1.72 + * @throws Exception if this resource cannot be closed
1.73 + */
1.74 + void close() throws Exception;
1.75 +}