return ObjectArrays.concat(a, b, Integer.class);
  }

  @J2ktIncompatible
  @GwtIncompatible // used only from suite
  public abstract static class TestIntegerListGenerator implements TestListGenerator<Integer> {
    @Override
    public SampleElements<Integer> samples() {
      return new SampleIntegers();
    }

    @Override
    public List<Integer> create(Object... elements) {

    Iterator<@Nullable String> c = Iterators.forArray("a", null, "b");
    assertThrows(NullPointerException.class, () -> copyOf((Iterator<String>) c));
  }

  private static class CountingIterable implements Iterable<String> {
    int count = 0;

    @Override
    public Iterator<String> iterator() {
      count++;
      return Iterators.forArray("a", "b", "a");
    }
  }

    for (int i = 0; i < elements.length; i++) {
      table.put(i, 'a', elements[i]);
    }
  }

  @J2ktIncompatible
  private abstract static class TestCellSetGenerator
      implements TestSetGenerator<Cell<String, Integer, Character>> {
    @Override
    public SampleElements<Cell<String, Integer, Character>> samples() {
      return new SampleElements<>(
          immutableCell("bar", 1, 'a'),

 * to prioritize memory over CPU.
 *
 * @author Dimitris Andreou
 * @author Jon Noack
 */
@GwtIncompatible // not worth using in GWT for now
class CompactHashSet<E extends @Nullable Object> extends AbstractSet<E> implements Serializable {
  // TODO(user): cache all field accesses in local vars

  /** Creates an empty {@code CompactHashSet} instance. */
  public static <E extends @Nullable Object> CompactHashSet<E> create() {

 * the {@code E} type variable declared by class {@code List} naturally maps to {@code String} in
 * the context of {@code class MyStringList implements List<String>}). In such case, prefer to use
 * {@link TypeToken#resolveType} since it's simpler and more type safe. This class should only be

 * Provides connection pooling and reuse for improved performance.
 *
 * @author mbechler
 *
 * <p>This class is intended for internal use.</p>
 */
public class SmbTransportPoolImpl implements SmbTransportPool {

    /**
     * Constructs a new SmbTransportPoolImpl instance.
     * This transport pool manages SMB connections for the client.
     */
    public SmbTransportPoolImpl() {

        @Override
        public String getSimilarDocHash() {
            return similarDocHash;
        }
    }

    // Mock HttpServletRequest for testing
    private static class MockHttpServletRequest implements HttpServletRequest {
        private Map<String, String[]> parameters = new HashMap<>();
        private Map<String, String> singleParameters = new HashMap<>();

 * around a {@link java.util.TreeMap}.
 *
 * @author Hayward Chan
 */
public final class ImmutableSortedMap<K, V> extends ForwardingImmutableMap<K, V>
    implements SortedMap<K, V> {

  @SuppressWarnings("unchecked")
  static final Comparator<?> NATURAL_ORDER = Ordering.natural();

  private final transient SortedMap<K, V> sortedDelegate;

import jcifs.util.Encdec;

/**
 * Random access file implementation for SMB resources.
 * Provides random read/write access to SMB files with support for seeking and positioning.
 *
 */
public class SmbRandomAccessFile implements SmbRandomAccess {

    private static final Logger log = LoggerFactory.getLogger(SmbRandomAccessFile.class);
    private static final int WRITE_OPTIONS = 0x0842;

    private final SmbFile file;
    private long fp;

import jcifs.smb1.util.Hexdump;
import jcifs.smb1.util.LogStream;
import jcifs.smb1.util.transport.Request;
import jcifs.smb1.util.transport.Response;

abstract class ServerMessageBlock extends Response implements Request, SmbConstants {

    static LogStream log = LogStream.getInstance();

    static final byte[] header = { (byte) 0xFF, (byte) 'S', (byte) 'M', (byte) 'B', (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,