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Wrap native libpcap api

There is a newer version: 1.5.1

/*
 * Copyright (c) 2020-2021 Pcap Project
 * SPDX-License-Identifier: MIT OR Apache-2.0
 */
package pcap.jdk7.internal;

import java.util.Iterator;
import java.util.NoSuchElementException;
import pcap.spi.Interface;

class DefaultInterfaceIterator implements Iterator {

  private Interface next;

  DefaultInterfaceIterator(Interface next) {
    this.next = next;
  }

  @Override
  public boolean hasNext() {
    return next != null;
  }

  @Override
  public Interface next() {
    if (!hasNext()) {
      throw new NoSuchElementException();
    }
    Interface previous = next;
    next = next.next();
    return previous;
  }

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