jdk/src/share/classes/java/lang/SuppressWarnings.java
author duke
Sat, 01 Dec 2007 00:00:00 +0000
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/*
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 * Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Sun designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Sun in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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package java.lang;
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import java.lang.annotation.*;
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import java.lang.annotation.ElementType;
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import static java.lang.annotation.ElementType.*;
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/**
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 * Indicates that the named compiler warnings should be suppressed in the
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 * annotated element (and in all program elements contained in the annotated
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 * element).  Note that the set of warnings suppressed in a given element is
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 * a superset of the warnings suppressed in all containing elements.  For
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 * example, if you annotate a class to suppress one warning and annotate a
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 * method to suppress another, both warnings will be suppressed in the method.
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 *
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 * <p>As a matter of style, programmers should always use this annotation
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 * on the most deeply nested element where it is effective.  If you want to
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 * suppress a warning in a particular method, you should annotate that
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 * method rather than its class.
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 *
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 * @since 1.5
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 * @author Josh Bloch
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 */
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@Target({TYPE, FIELD, METHOD, PARAMETER, CONSTRUCTOR, LOCAL_VARIABLE})
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@Retention(RetentionPolicy.SOURCE)
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public @interface SuppressWarnings {
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    /**
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     * The set of warnings that are to be suppressed by the compiler in the
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     * annotated element.  Duplicate names are permitted.  The second and
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     * successive occurrences of a name are ignored.  The presence of
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     * unrecognized warning names is <i>not</i> an error: Compilers must
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     * ignore any warning names they do not recognize.  They are, however,
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     * free to emit a warning if an annotation contains an unrecognized
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     * warning name.
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     *
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     * <p>Compiler vendors should document the warning names they support in
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     * conjunction with this annotation type. They are encouraged to cooperate
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     * to ensure that the same names work across multiple compilers.
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     */
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    String[] value();
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}