return;
    }

    map.put(null, unmappedValue);
    assertEquals(unmappedValue, map.get(null));
    assertTrue(map.containsKey(null));
    Entry<@Nullable K, V> entry = mapEntry(null, unmappedValue);
    assertTrue(entrySet.remove(entry));
    assertNull(map.get(null));
    assertFalse(map.containsKey(null));
  }

  public void testEntrySetRemoveNullKeyMissing() {

                break;
            }
        }
        if (authMethod == null) {
            return null;
        }
        NtlmMessage message = authorization != null ? new Type2Message(Base64.decode(authorization)) : null;
        reconnect();
        if (message == null) {
            message = new Type1Message();
            if (LM_COMPATIBILITY > 2) {

            return null;
        }
        synchronized (this.addressCache) {
            CacheEntry entry = this.addressCache.get(hostName);
            if (entry != null && entry.expiration < System.currentTimeMillis() && entry.expiration >= 0) {
                entry = null;
            }
            return entry != null ? entry.address : null;
        }
    }

    int getNextNameTrnId() {

     * @param root the Maven Dependency, must not be {@code null}
     * @param scope the {link PathScope} to collect dependencies, must not be {@code null}
     * @return the collection result, never {@code null}
     * @throws DependencyResolverException if the dependency tree could not be built
     * @throws IllegalArgumentException if an argument is null or invalid

 */
@ExtendWith(MockitoExtension.class)
class SmbComLogoffAndXTest {

    @Test
    @DisplayName("constructor accepts null andx")
    void constructorWithNullAndx() {
        SmbComLogoffAndX msg = new SmbComLogoffAndX(null);
        assertNotNull(msg, "Message must not be null after construction");
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 5, -1, 10 })

    assertTrue(multimap().putAll(k0(), newArrayList(v3(), null)));
    assertGet(k0(), v0(), v3(), null);
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  public void testPutAllNullValueOnAbsentKey_supported() {
    assertTrue(multimap().putAll(k3(), newArrayList(v3(), null)));
    assertGet(k3(), v3(), null);
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)

                    if (cresp != null && cresp.isReceived()) {
                        return (T) cresp;
                    }
                    if (chain != null) {
                        return this.transport.send(chain, null, params);
                    }
                    return null;
                }
            }
        }

    }

    // Test findBusinessTimeZone with null parameters
    public void test_findBusinessTimeZone_withNullParameters() {
        // Execute with null parameters
        OptionalThing<TimeZone> result = provider.findBusinessTimeZone(null, null);

        // Should still return empty optional
        assertNotNull(result);
        assertFalse(result.isPresent());
    }

    void equalsAndHashCode_subjectSemantics() {
        Kerb5Authenticator a = new Kerb5Authenticator((Subject) null);
        Kerb5Authenticator b = new Kerb5Authenticator((Subject) null);

        // Both null subjects -> equal
        assertEquals(a, b);
        assertEquals(a.hashCode(), b.hashCode());

        // Mixed null/non-null -> not equal
        Kerb5Authenticator c = new Kerb5Authenticator(new Subject());

        int result = 1;
        result = prime * result + ((value1 == null) ? 0 : value1.hashCode());
        result = prime * result + ((value2 == null) ? 0 : value2.hashCode());
        result = prime * result + ((value3 == null) ? 0 : value3.hashCode());
        result = prime * result + ((value4 == null) ? 0 : value4.hashCode());
        result = prime * result + ((value5 == null) ? 0 : value5.hashCode());
        return result;
    }