JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2016, 2018, 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
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package java.awt.desktop;

import java.awt.Desktop;
import java.awt.GraphicsEnvironment;
import java.awt.HeadlessException;

/**
 * Event sent when the application is asked to open its about window.
 *
 * @see AboutHandler#handleAbout
 * @since 9
 */
public final class AboutEvent extends AppEvent {

    /**
     * Use serialVersionUID from JDK 9 for interoperability.
     */
    private static final long serialVersionUID = -5987180734802756477L;

    /**
     * Constructs an {@code AboutEvent}.
     *
     * @throws HeadlessException if {@link GraphicsEnvironment#isHeadless()}
     *         returns {@code true}

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