src/main/java/org/apache/commons/collections4/bag/AbstractMapBag.java [189:243]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            this.parent = parent;
            this.entryIterator = parent.map.entrySet().iterator();
            this.current = null;
            this.mods = parent.modCount;
            this.canRemove = false;
        }

        /** {@inheritDoc} */
        @Override
        public boolean hasNext() {
            return itemCount > 0 || entryIterator.hasNext();
        }

        /** {@inheritDoc} */
        @Override
        public E next() {
            if (parent.modCount != mods) {
                throw new ConcurrentModificationException();
            }
            if (itemCount == 0) {
                current = entryIterator.next();
                itemCount = current.getValue().value;
            }
            canRemove = true;
            itemCount--;
            return current.getKey();
        }

        /** {@inheritDoc} */
        @Override
        public void remove() {
            if (parent.modCount != mods) {
                throw new ConcurrentModificationException();
            }
            if (!canRemove) {
                throw new IllegalStateException();
            }
            final MutableInteger mut = current.getValue();
            if (mut.value > 1) {
                mut.value--;
            } else {
                entryIterator.remove();
            }
            parent.size--;
            canRemove = false;
        }
    }

    /**
     * Adds a new element to the bag, incrementing its count in the underlying map.
     *
     * @param object the object to add
     * @return {@code true} if the object was not already in the {@code uniqueSet}
     */
    @Override
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



src/main/java/org/apache/commons/collections4/multiset/AbstractMapMultiSet.java [164:212]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            this.parent = parent;
            this.entryIterator = parent.map.entrySet().iterator();
            this.current = null;
            this.mods = parent.modCount;
            this.canRemove = false;
        }

        /** {@inheritDoc} */
        @Override
        public boolean hasNext() {
            return itemCount > 0 || entryIterator.hasNext();
        }

        /** {@inheritDoc} */
        @Override
        public E next() {
            if (parent.modCount != mods) {
                throw new ConcurrentModificationException();
            }
            if (itemCount == 0) {
                current = entryIterator.next();
                itemCount = current.getValue().value;
            }
            canRemove = true;
            itemCount--;
            return current.getKey();
        }

        /** {@inheritDoc} */
        @Override
        public void remove() {
            if (parent.modCount != mods) {
                throw new ConcurrentModificationException();
            }
            if (!canRemove) {
                throw new IllegalStateException();
            }
            final MutableInteger mut = current.getValue();
            if (mut.value > 1) {
                mut.value--;
            } else {
                entryIterator.remove();
            }
            parent.size--;
            canRemove = false;
        }
    }

    @Override
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -