Edit C:\Program Files\Java\jdk1.8.0_121\com\sun\glass\ui\mac\MacCursor.java

/*
 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */
package com.sun.glass.ui.mac;

import com.sun.glass.ui.Cursor;
import com.sun.glass.ui.Pixels;
import com.sun.glass.ui.Size;

/**
 * MacOSX platform implementation class for Cursor.
 */
final class MacCursor extends Cursor {

private native static void _initIDs();
    static {
        _initIDs();
    }

protected MacCursor(int type) {
        super(type);
    }

protected MacCursor(int x, int y, Pixels pixels) {
        super(x, y, pixels);
    }

@Override native protected long _createCursor(int x, int y, Pixels pixels);

void set() {
        int type = getType();
        isCursorNONE = type == CURSOR_NONE;
        // Re-apply the last requested cursor visibility, and take into account
        // the isCursorNONE flag (see the setter below).
        setVisible(isVisible);

switch (type) {
            case CURSOR_NONE:
                break;
            case CURSOR_CUSTOM:
                _setCustom(getNativeCursor());
                break;
            default:
                _set(type);
                break;
        }
    }

native private void _set(int type);
    native private void _setCustom(long ptr);

native private static void _setVisible(boolean visible);
    native private static Size _getBestSize(int width, int height);

// [NSCursor (un)hide] method calls must be balanced,
    // so we keep the state in the boolean field to avoid
    // multiple native calls.
    private static boolean isNSCursorVisible = true;

// These two flags help us handle the NONE cursor which
    // we emulate by hidding the cursor.
    private static boolean isCursorNONE = false;
    private static boolean isVisible = true; // as requested by client code

static void setVisible_impl(boolean visible) {
        isVisible = visible;
        final boolean effectiveVisible = visible && !isCursorNONE;
        if (isNSCursorVisible == effectiveVisible) {
            return;
        } else {
            isNSCursorVisible = effectiveVisible;
            _setVisible(effectiveVisible);
        }
    }

static Size getBestSize_impl(int width, int height) {
        return _getBestSize(width, height);
    }
}

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