Edit C:\Program Files\Java\jdk1.8.0_121\com\sun\javafx\collections\MappingChange.java

/*
 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package com.sun.javafx.collections;

import java.util.AbstractList;
import java.util.List;
import javafx.collections.ListChangeListener.Change;
import javafx.collections.ObservableList;

public final class MappingChange<E, F> extends Change<F>{
    private final Map<E, F> map;
    private final Change<? extends E> original;
    private List<F> removed;

public static final Map NOOP_MAP = new Map() {

@Override
        public Object map(Object original) {
            return original;
        }
    };

public static interface Map<E, F> {
        F map(E original);
    }

public MappingChange(Change<? extends E> original, Map<E, F> map, ObservableList<F> list) {
        super(list);
        this.original = original;
        this.map = map;
    }

@Override
    public boolean next() {
        return original.next();
    }

@Override
    public void reset() {
        original.reset();
    }

@Override
    public int getFrom() {
        return original.getFrom();
    }

@Override
    public int getTo() {
        return original.getTo();
    }

@Override
    public List<F> getRemoved() {
        if (removed == null) {
            removed = new AbstractList<F>() {

@Override
                public F get(int index) {
                    return map.map(original.getRemoved().get(index));
                }

@Override
                public int size() {
                    return original.getRemovedSize();
                }
            };
        }
        return removed;
    }

@Override
    protected int[] getPermutation() {
        return new int[0];
    }

@Override
    public boolean wasPermutated() {
        return original.wasPermutated();
    }

@Override
    public boolean wasUpdated() {
        return original.wasUpdated();
    }

@Override
    public int getPermutation(int i) {
        return original.getPermutation(i);
    }

@Override
    public String toString() {
        // Get the current position. We don't want to store the current position explicitely,
        // just for the toString(), so we need to iterate the changes twice. This shouldn't
        // be an issue, given the average number of change sub-parts
        int posToEnd = 0;
        while (next()) {
            posToEnd++;
        }

int size = 0;
        reset();
        while (next()) {
            size++;
        }
        reset();
        StringBuilder b = new StringBuilder();
        b.append("{ ");
        int pos = 0;
        while (next()) {
            if (wasPermutated()) {
                b.append(ChangeHelper.permChangeToString(getPermutation()));
            } else if (wasUpdated()) {
                b.append(ChangeHelper.updateChangeToString(getFrom(), getTo()));
            } else {
                b.append(ChangeHelper.addRemoveChangeToString(getFrom(), getTo(), getList(), getRemoved()));
            }
            if (pos != size) {
                b.append(", ");
            }
        }
        b.append(" }");

reset();
        pos = size - posToEnd;
        while (pos-- > 0) {
            next();
        }

return b.toString();
    }

}

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