--- a/jdk/src/java.base/unix/classes/sun/misc/GThreadHelper.java	Sun Apr 10 08:41:00 2016 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,87 +0,0 @@
-/*
- * Copyright (c) 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 sun.misc;
-
-import java.util.concurrent.locks.ReentrantLock;
-
-/**
- * This class is used to prevent multiple calling of g_thread_init ()
- * and gdk_thread_init ().
- *
- * Since version 2.24 of GLib, calling g_thread_init () multiple times is
- * allowed, but it will crash for older versions. There are two ways to
- * find out if g_thread_init () has been called:
- * g_thread_get_initialized (), but it was introduced in 2.20
- * g_thread_supported (), but it is a macro and cannot be loaded with dlsym.
- *
- * usage:
- * <pre>
- * lock();
- * try {
- *    if (!getAndSetInitializationNeededFlag()) {
- *        //call to g_thread_init();
- *        //call to gdk_thread_init();
- *    }
- * } finally {
- *    unlock();
- * }
- * </pre>
- */
-public final class GThreadHelper {
-
-    private static final ReentrantLock LOCK = new ReentrantLock();
-    private static boolean isGThreadInitialized = false;
-
-    /**
-     * Acquires the lock.
-     */
-    public static void lock() {
-        LOCK.lock();
-    }
-
-    /**
-     * Releases the lock.
-     */
-    public static void unlock() {
-        LOCK.unlock();
-    }
-
-    /**
-     * Gets current value of initialization flag and sets it to {@code true}.
-     * MUST be called under the lock.
-     *
-     * A return value of {@code false} indicates that the calling code
-     * should call the g_thread_init() and gdk_thread_init() functions
-     * before releasing the lock.
-     *
-     * @return {@code true} if initialization has been completed.
-     */
-    public static boolean getAndSetInitializationNeededFlag() {
-        boolean ret = isGThreadInitialized;
-        isGThreadInitialized = true;
-        return ret;
-    }
-}