private final int startPort;
    private final int endPort;
    private final Lock lock = new ReentrantLock();
    private PortDetector portDetector = new DefaultPortDetector();
    private final List<Integer> allocated = new ArrayList<Integer>();
    private Map<String, Integer> allocatedPortsId = new HashMap<>();
    private int current;

    public ReservedPortRange(int startPort, int endPort) {
        this.startPort = startPort;

        int endPort = startPort + DEFAULT_RANGE_SIZE - 1;
        if (endPort > MAX_PRIVATE_PORT) {
            throw new IllegalStateException(
                "Available port ranges have exceeded Range from " + MIN_PRIVATE_PORT + " to " + MAX_PRIVATE_PORT
            );
        }
        return Pair.of(startPort, endPort);
    }

    public ReservedPortRange reservePortRange() {

public class DefaultReservedPortRangeFactory implements ReservedPortRangeFactory {
    @Override
    public ReservedPortRange getReservedPortRange(int startPort, int endPort) {
        return new ReservedPortRange(startPort, endPort);
    }

 * Side Public License, v 1.
 */

package org.elasticsearch.gradle.internal.util.ports;

public interface ReservedPortRangeFactory {
    ReservedPortRange getReservedPortRange(int startPort, int endPort);