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/*
 * Copyright 2013 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package io.netty.util.internal;

import java.util.Iterator;

public final class ReadOnlyIterator implements Iterator {
    private final Iterator iterator;

    public ReadOnlyIterator(Iterator iterator) {
        if (iterator == null) {
            throw new NullPointerException("iterator");
        }
        this.iterator = iterator;
    }

    @Override
    public boolean hasNext() {
        return iterator.hasNext();
    }

    @Override
    public T next() {
        return iterator.next();
    }

    @Override
    public void remove() {
        throw new UnsupportedOperationException("read-only");
    }
}




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