src/java.base/windows/classes/sun/nio/ch/DefaultSelectorProvider.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 * 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).
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package sun.nio.ch;

import java.security.AccessController;
import java.security.PrivilegedAction;

/**
 * Creates this platform's default SelectorProvider
 */

@SuppressWarnings("removal")
public class DefaultSelectorProvider {
    private static final SelectorProviderImpl INSTANCE;
    static {
        PrivilegedAction<SelectorProviderImpl> pa = WEPollSelectorProvider::new;
        INSTANCE = AccessController.doPrivileged(pa);
    }

    /**
     * Prevent instantiation.
     */
    private DefaultSelectorProvider() { }

    /**
     * Returns the default SelectorProvider implementation.
     */
    public static SelectorProviderImpl get() {
        return INSTANCE;
    }
}