src/main/java/org/apache/commons/collections4/bag/UnmodifiableBag.java [81:102]:
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    @Override
    public boolean add(final E object) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean add(final E object, final int count) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean addAll(final Collection<? extends E> coll) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void clear() {
        throw new UnsupportedOperationException();
    }

    @Override
    public Iterator<E> iterator() {
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src/main/java/org/apache/commons/collections4/bag/UnmodifiableSortedBag.java [78:99]:
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    @Override
    public boolean add(final E object) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean add(final E object, final int count) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean addAll(final Collection<? extends E> coll) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void clear() {
        throw new UnsupportedOperationException();
    }

    @Override
    public Iterator<E> iterator() {
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