JDK8/Java8源码在线阅读

/*
 * Copyright (c) 2004, 2013, 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;

import java.lang.annotation.*;
import static java.lang.annotation.ElementType.*;

/**
 * Indicates that the named compiler warnings should be suppressed in the
 * annotated element (and in all program elements contained in the annotated
 * element).  Note that the set of warnings suppressed in a given element is
 * a superset of the warnings suppressed in all containing elements.  For
 * example, if you annotate a class to suppress one warning and annotate a
 * method to suppress another, both warnings will be suppressed in the method.
 *
 * <p>As a matter of style, programmers should always use this annotation
 * on the most deeply nested element where it is effective.  If you want to
 * suppress a warning in a particular method, you should annotate that
 * method rather than its class.
 *
 * @author Josh Bloch
 * @since 1.5
 * @jls 4.8 Raw Types
 * @jls 4.12.2 Variables of Reference Type
 * @jls 5.1.9 Unchecked Conversion
 * @jls 5.5.2 Checked Casts and Unchecked Casts
 * @jls 9.6.3.5 @SuppressWarnings
 */
@Target({TYPE, FIELD, METHOD, PARAMETER, CONSTRUCTOR, LOCAL_VARIABLE})
@Retention(RetentionPolicy.SOURCE)
public @interface SuppressWarnings {
    /**
     * The set of warnings that are to be suppressed by the compiler in the
     * annotated element.  Duplicate names are permitted.  The second and
     * successive occurrences of a name are ignored.  The presence of
     * unrecognized warning names is <i>not</i> an error: Compilers must
     * ignore any warning names they do not recognize.  They are, however,
     * free to emit a warning if an annotation contains an unrecognized
     * warning name.
     *
     * <p> The string {@code "unchecked"} is used to suppress

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