Edit C:\Program Files\Java\jdk1.8.0_121\javafx\scene\control\ControlUtils.java

/*
 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package javafx.scene.control;

import com.sun.javafx.scene.control.skin.Utils;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.collections.ListChangeListener;
import javafx.collections.ObservableList;
import javafx.collections.ObservableMap;
import javafx.event.Event;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;

import java.util.List;

class ControlUtils {
    private ControlUtils() { }

public static void scrollToIndex(final Control control, int index) {
        Utils.executeOnceWhenPropertyIsNonNull(control.skinProperty(), (Skin<?> skin) -> {
            Event.fireEvent(control, new ScrollToEvent<>(control, control, ScrollToEvent.scrollToTopIndex(), index));
        });
    }

public static void scrollToColumn(final Control control, final TableColumnBase<?, ?> column) {
        Utils.executeOnceWhenPropertyIsNonNull(control.skinProperty(), (Skin<?> skin) -> {
            control.fireEvent(new ScrollToEvent<TableColumnBase<?, ?>>(control, control, ScrollToEvent.scrollToColumn(), column));
        });
    }

static void requestFocusOnControlOnlyIfCurrentFocusOwnerIsChild(Control c) {
        Scene scene = c.getScene();
        final Node focusOwner = scene == null ? null : scene.getFocusOwner();
        if (focusOwner == null) {
            c.requestFocus();
        } else if (! c.equals(focusOwner)) {
            Parent p = focusOwner.getParent();
            while (p != null) {
                if (c.equals(p)) {
                    c.requestFocus();
                    break;
                }
                p = p.getParent();
            }
        }
    }

static <T> ListChangeListener.Change<T> buildClearAndSelectChange(
            ObservableList<T> list, List<T> removed, int retainedRow) {
        return new ListChangeListener.Change<T>(list) {
            private final int[] EMPTY_PERM = new int[0];

private final int removedSize = removed.size();

private final List<T> firstRemovedRange;
            private final List<T> secondRemovedRange;

private boolean invalid = true;
            private boolean atFirstRange = true;

private int from = -1;

{
                int midIndex = retainedRow >= removedSize ? removedSize :
                               retainedRow < 0 ? 0 :
                               retainedRow;
                firstRemovedRange = removed.subList(0, midIndex);
                secondRemovedRange = removed.subList(midIndex, removedSize);
            }

@Override public int getFrom() {
                checkState();
                return from;
            }

@Override public int getTo() {
                return getFrom();
            }

@Override public List<T> getRemoved() {
                checkState();
                return atFirstRange ? firstRemovedRange : secondRemovedRange;
            }

@Override public int getRemovedSize() {
                return atFirstRange ? firstRemovedRange.size() : secondRemovedRange.size();
            }

@Override protected int[] getPermutation() {
                checkState();
                return EMPTY_PERM;
            }

@Override public boolean next() {
                if (invalid && atFirstRange) {
                    invalid = false;

// point 'from' to the first position, relative to
                    // the underlying selectedCells index.
                    from = 0;
                    return true;
                }

if (atFirstRange && !secondRemovedRange.isEmpty()) {
                    atFirstRange = false;

// point 'from' to the second position, relative to
                    // the underlying selectedCells index.
                    from = 1;
                    return true;
                }

return false;
            }

@Override public void reset() {
                invalid = true;
                atFirstRange = true;
            }

private void checkState() {
                if (invalid) {
                    throw new IllegalStateException("Invalid Change state: next() must be called before inspecting the Change.");
                }
            }
        };
    }
}

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