Iterable<? extends T> iterable, @ParametricNullness T defaultValue) {
    return Iterators.getOnlyElement(iterable.iterator(), defaultValue);
  }

  /**
   * Copies an iterable's elements into an array.
   *
   * @param iterable the iterable to copy
   * @param type the type of the elements
   * @return a newly-allocated array into which all the elements of the iterable have been copied

/**
 * There are hundreds of error codes that may be returned by a CIFS
 * server. Rather than represent each with it's own <code>Exception</code>
 * class, this class represents all of them. For many of the popular
 * error codes, constants and text messages like "The device is not ready"
 * are provided.
 * <p>
 * The jCIFS client maps DOS error codes to NTSTATUS codes. This means that

    assertEquals(
        1391975640 /*C(34,14)*/,
        Collections2.orderedPermutations(concat(nCopies(20, 1), nCopies(14, 2))).size());
    // Do force an overflow in the binomial coefficient calculation
    assertEquals(
        Integer.MAX_VALUE,
        Collections2.orderedPermutations(concat(nCopies(21, 1), nCopies(14, 2))).size());
  }

  public void testOrderedPermutationSetContains() {

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb1.dcerpc;

/**
 * DCE/RPC error codes and fault constants for SMB1 compatibility
 */
public interface DcerpcError {

    /**
     * Generic fault code for other errors
     */
    int DCERPC_FAULT_OTHER = 0x00000001;
    /**

    @Nested
    @DisplayName("Edge Cases and Boundary Tests")
    class EdgeCasesTests {

        @Test
        @DisplayName("Should handle various result codes correctly")
        void testVariousResultCodes() throws Exception {
            // Test all known result codes
            int[] validCodes = { 0, 1, 2, 3 };
            String[] expectedMessages = { null, // 0 returns null (no exception)

import jcifs.CIFSException;

/**
 * NetBIOS exception class for NBT-related errors.
 *
 * This exception encapsulates NetBIOS name service and session service errors
 * with specific error classes and codes.
 */
public class NbtException extends CIFSException {

    /**
     *
     */
    private static final long serialVersionUID = 492638554095148960L;
    // error classes
    /** Success status code */

        // Create channels with zero scores (failed state)
        channel1.setState(ChannelState.FAILED);
        channel2.setState(ChannelState.FAILED);

        when(mockChannelManager.getHealthyChannels()).thenReturn(Arrays.asList(channel1, channel2));

        // Should still select a channel even with zero scores
        ChannelInfo selected = loadBalancer.selectChannel(mockMessage);

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb;

/**
 * Windows error codes used in SMB protocol operations.
 * These constants represent standard Windows error codes returned by SMB servers.
 */
public interface WinError {

    /*
     * Don't bother to edit this. Everything within the interface

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb1.smb1;

/**
 * Windows error codes used in SMB protocol operations.
 * These constants represent standard Windows error codes returned by SMB servers.
 */
public interface WinError {

    /* Don't bother to edit this. Everthing within the interface

    }

    @ParameterizedTest
    @MethodSource("knownMappings")
    @DisplayName("Happy path: known DOS codes map to expected NTSTATUS")
    void mapsKnownDosCodesToNtStatus(int dosCode, int expectedNtStatus) {
        // Act
        int actual = findNtStatusOrMinusOne(dosCode);

        // Assert