public void testPutDuplicateValue() {
    List<Entry<K, V>> entries = copyToList(multimap().entries());

    for (Entry<K, V> entry : entries) {
      resetContainer();

      K k = entry.getKey();
      V v = entry.getValue();

      List<V> values = multimap().get(k);
      List<V> expectedValues = copyToList(values);

      assertTrue(multimap().put(k, v));
      expectedValues.add(v);
      assertGet(k, expectedValues);

        ArgumentCaptor<String> svcCap = ArgumentCaptor.forClass(String.class);
        verify(session).getSmbTree(shareCap.capture(), svcCap.capture());
        assertEquals(share, shareCap.getValue());
        assertEquals(svc, svcCap.getValue());
    }

    // Edge/invalid inputs: null or empty share/service cause IllegalArgumentException (mocked)
    @ParameterizedTest

                log.trace("  Root " + entry2.getKey());
                if (entry2.getValue().map != null) {
                    for (final Entry<String, DfsReferralDataInternal> entry3 : entry2.getValue().map.entrySet()) {
                        final DfsReferralDataInternal start = entry3.getValue();
                        DfsReferralDataInternal r = start;

        ArgumentCaptor<CommonServerMessageBlockRequest> reqCap = ArgumentCaptor.forClass(CommonServerMessageBlockRequest.class);
        verify(tree).send(reqCap.capture(), any(), any(), any());
        assertTrue(reqCap.getValue() instanceof Smb2ChangeNotifyRequest, "SMB2 request must be used");
        verify(tree, times(1)).close(); // try-with-resources must close
        verify(handle, never()).markClosed();

            ArgumentCaptor<Smb2ReadRequest> cap = ArgumentCaptor.forClass(Smb2ReadRequest.class);
            verify(mockTree).send(cap.capture(), any(RequestParam.class));
            Smb2ReadRequest req = cap.getValue();

            // Reflectively inspect the private 'offset' field to assert it used the advanced fp
            Field offField = Smb2ReadRequest.class.getDeclaredField("offset");
            offField.setAccessible(true);

        accountAttempts.entrySet().removeIf(entry -> {
            AccountAttempts account = entry.getValue();
            return !account.isLockedOut() && account.getLastAttempt().plus(cleanupInterval).isBefore(now);
        });

        // Clean up IP attempts
        ipAttempts.entrySet().removeIf(entry -> {
            IpAttempts ip = entry.getValue();
            return !ip.isBlocked() && ip.getLastAttempt().plus(cleanupInterval).isBefore(now);

                final StringBuilder tempBuf = new StringBuilder();
                append(tempBuf, StringEscapeUtils.escapeJson(e.getKey()), () -> StringEscapeUtils.escapeJson(e.getValue().getHotThreads()));
                return tempBuf.toString();
            }).collect(Collectors.joining(","));
            buf.append(hotThreads).append(',');
        } catch (final Exception e) {

                if (e.getValue() != null) {
                    if (!first) {
                        json.append(",");
                    }
                    json.append("\"").append(escapeJson(e.getKey())).append("\":\"");
                    json.append(escapeJson(String.valueOf(e.getValue()))).append("\"");
                    first = false;
                }

        ArgumentCaptor<String> pathCap = ArgumentCaptor.forClass(String.class);
        verify(locator).handleDFSReferral(drCap.capture(), pathCap.capture());

        assertSame(referral, drCap.getValue());
        assertEquals(req, pathCap.getValue());
        verifyNoMoreInteractions(locator);
    }

            ArgumentCaptor<MsrpcSamrConnect4> captor = ArgumentCaptor.forClass(MsrpcSamrConnect4.class);
            verify(mockHandle).sendrecv(captor.capture());
            assertEquals("\\\\", captor.getValue().system_name); // Verify server name in RPC call
        }
    }

    @Test
    void testConstructor_FallbackToConnect2() throws IOException {