private final AtomicLong connectionsCreated = new AtomicLong();
    private final AtomicLong connectionsActive = new AtomicLong();
    private final AtomicLong memoryRegionsAllocated = new AtomicLong();
    private final AtomicLong memoryRegionsActive = new AtomicLong();

    // Timing statistics (in nanoseconds)
    private final AtomicLong totalReadTime = new AtomicLong();

    int i = 0;
    for (Entry<E> entry : entries) {
      elementsBuilder.add(entry.getElement());
      cumulativeCounts[i + 1] = cumulativeCounts[i] + entry.getCount();
      i++;
    }
    return new RegularImmutableSortedMultiset<>(
        new RegularImmutableSortedSet<E>(elementsBuilder.build(), comparator),
        cumulativeCounts,
        0,
        entries.size());
  }

     */
    map.put(Integer.class, new Integer(5));
    assertThrows(ClassCastException.class, () -> map.put(Double.class, new Long(42)));
    // Won't compile: map.put(String.class, "x");
  }

  public void testPutAndGetInstance() {
    assertNull(map.putInstance(Integer.class, new Integer(5)));

    Integer oldValue = map.putInstance(Integer.class, new Integer(7));
    assertEquals(5, (int) oldValue);

    @BeforeEach
    void setUp() {
        handler = new Handler();
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create handler with default constructor")
        void testDefaultConstructor() {
            // When
            Handler testHandler = new Handler();

            // Then
            assertNotNull(testHandler);

     */
    @Test
    void testConstructorWithMessageAndCause() {
        String message = "Test message with cause.";
        Throwable cause = new RuntimeException("Original cause.");
        DcerpcException exception = new DcerpcException(message, cause);

        assertEquals(0, exception.getErrorCode(), "Error code should be 0 for message and cause constructor.");

                }
              }
              return true;
            };
    TypeWithDuplicates a = new TypeWithDuplicates(1, 1);
    TypeWithDuplicates b1 = new TypeWithDuplicates(2, 1);
    TypeWithDuplicates b2 = new TypeWithDuplicates(2, 2);
    TypeWithDuplicates c = new TypeWithDuplicates(3, 1);
    CollectorTester.of(collector, equivalence)
        .expectCollects(

    static {
        KRB5_MECH_OID = new ASN1ObjectIdentifier("1.2.840.113554.1.2.2");
        KRB5_MS_MECH_OID = new ASN1ObjectIdentifier("1.2.840.48018.1.2.2");
        SUPPORTED_MECHS = new ASN1ObjectIdentifier[] { KRB5_MECH_OID, KRB5_MS_MECH_OID };

        Oid krbNameOid = null;
        Oid krbMechOid = null;
        try {
            krbNameOid = new Oid("1.2.840.113554.1.2.2.1");

            capturedSessionId = sessionId;
            capturedCmdList = new ArrayList<>(cmdList);

            ProcessBuilder pb = new ProcessBuilder(cmdList);
            pbConsumer.accept(pb);
            capturedDirectory = pb.directory();
            capturedEnvironment = new HashMap<>(pb.environment());

            return new TestJobProcess(exitValue, processOutput);
        }
    }

                default:
                    throw new UnknownHostException(hostname);
                }
                final UniAddress[] addrs = new UniAddress[1];
                addrs[0] = new UniAddress(addr);
                return addrs; // Success
            } catch (final IOException ioe) {
                // Failure
            }
        }
        throw new UnknownHostException(hostname);
    }

    /**

public class Deferred<RESPONSE extends Response> {
    /**
     * Constructs a new Deferred object.
     */
    public Deferred() {
        // nothing
    }

    private RESPONSE response = null;

    private Throwable error = null;

    private final Promise promise = new Promise();

    private final Queue<Consumer<RESPONSE>> doneCallbacks = new LinkedBlockingQueue<>();