src/main/java/org/apache/commons/collections4/collection/UnmodifiableBoundedCollection.java [118:161]:
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    @Override
    public Iterator<E> iterator() {
        return UnmodifiableIterator.unmodifiableIterator(decorated().iterator());
    }

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

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

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

    @Override
    public boolean remove(final Object object) {
        throw new UnsupportedOperationException();
    }

    /**
     * @since 4.4
     */
    @Override
    public boolean removeIf(final Predicate<? super E> filter) {
        throw new UnsupportedOperationException();
    }

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

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

    @Override
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src/main/java/org/apache/commons/collections4/set/UnmodifiableSortedSet.java [75:118]:
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    @Override
    public Iterator<E> iterator() {
        return UnmodifiableIterator.unmodifiableIterator(decorated().iterator());
    }

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

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

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

    @Override
    public boolean remove(final Object object) {
        throw new UnsupportedOperationException();
    }

    /**
     * @since 4.4
     */
    @Override
    public boolean removeIf(final Predicate<? super E> filter) {
        throw new UnsupportedOperationException();
    }

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

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

    @Override
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