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Nashorn is an Open Source JavaScript (ECMAScript 5.1 and some 6 features) engine for the JVM.

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/*
 * Copyright (c) 2010, 2020, 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 org.openjdk.nashorn.api.linker;

import java.util.List;
import jdk.dynalink.linker.GuardingDynamicLinker;
import jdk.dynalink.linker.GuardingDynamicLinkerExporter;
import org.openjdk.nashorn.internal.runtime.linker.Bootstrap;

/**
 * This linker exporter is a service provider that exports Nashorn Dynalink
 * linkers to external users. Other language runtimes that use Dynalink
 * can use the linkers exported by this provider to support tight integration
 * of Nashorn objects.
 */
public final class NashornLinkerExporter extends GuardingDynamicLinkerExporter {
    /**
     * The default constructor.
     */
    public NashornLinkerExporter() {}

    /**
     * Returns a list of exported nashorn specific linkers.
     *
     * @return list of exported nashorn specific linkers
     */
    @Override
    public List get() {
        return Bootstrap.getExposedLinkers();
    }
}