/*
* Copyright (c) 1998, 2017, 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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/**
* Provides one interface and many abstract classes that Swing uses to provide
* its pluggable look-and-feel capabilities. Its classes are subclassed and
* implemented by look and feel UIs such as Basic and the Java look and feel
* (Metal). This package is only used by developers who cannot create a new
* look and feel by subclassing existing look-and-feel components (such as those
* provided by the {@code javax.swing.plaf.basic} and
* {@code javax.swing.plaf.metal} packages).
* <p>
* <strong>Note:</strong>
* Most of the Swing API is <em>not</em> thread safe. For details, see
* <a
* href="https://docs.oracle.com/javase/tutorial/uiswing/concurrency/index.html"
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