if (!fessConfig.isAcceptedSearchReferer(request.getHeader("referer"))) {
            writeJsonResponse(HttpServletResponse.SC_BAD_REQUEST, escapeJsonKeyValue(MESSAGE_FIELD, "Referer is invalid."));
            return;
        }

        if (!fessConfig.isApiSearchScroll()) {
            writeJsonResponse(HttpServletResponse.SC_BAD_REQUEST, escapeJsonKeyValue(MESSAGE_FIELD, "Scroll Search is not available."));

        assertEquals(0, results.length);
    }

    public void test_load_invalidRegex() {
        List<RelatedContent> testData = new ArrayList<>();
        testData.add(createRelatedContent("regex:", "Invalid Regex", ""));
        mockBhv.setTestData(testData);

        // Should not throw exception, just log warning
        relatedContentHelper.load();

    // Cache implementors may want to catch it but should not need to be able to throw it.
    UnsupportedLoadingOperationException() {}
  }

  /**
   * Thrown to indicate that an invalid response was returned from a call to {@link CacheLoader}.
   *
   * @since 11.0
   */
  public static final class InvalidCacheLoadException extends RuntimeException {

        // Wait for expiration
        Thread.sleep(100);

        assertTrue(entry.isExpired());
        assertTrue(entry.needsRefresh());

        // After expiration, cache should be treated as invalid by manager
        // (In real implementation, expired entries might be cleaned up automatically)
    }

    @Test
    public void testDirectoryLeaseContextIntegration() {

                si = arr.length;
            }

            si++;
        } while (si < arr.length);

        if (binding == null || binding.endpoint == null) {
            throw new DcerpcException("Invalid binding URL: " + str);
        }

        return binding;
    }

    /**
     * The DCERPC binding configuration for this handle
     */
    protected DcerpcBinding binding;
    /**

                        repos.add(repo);
                    } catch (InvalidRepositoryException e) {
                        throw new ProjectBuildingException("", "Invalid remote repository " + repository, e);
                    }
                    normalized = true;
                } else {
                    repos.add((ArtifactRepository) repository);
                }

        } catch (ConfigPropertyNotFoundException e) {
            assertTrue(e.getMessage().contains("non.existent.boolean"));
        }
    }

    // Test getTimeAdjustTimeMillisAsLong with invalid number format
    public void xtest_getTimeAdjustTimeMillisAsLong_invalidFormat() {
        FessEnv.SimpleImpl customEnv = new FessEnv.SimpleImpl() {
            protected Properties prepareProperties() {

          }

          var lengthBits = source.readByte().toLong() and 0xff
          if (lengthBits == 0L || lengthBytes == 1 && lengthBits and 0b1000_0000 == 0L) {
            throw ProtocolException("invalid encoding for length")
          }

          for (i in 1 until lengthBytes) {
            lengthBits = lengthBits shl 8
            lengthBits += source.readByte().toInt() and 0xff
          }

    void testGetPreNTLMResponse_invalidEncoding() {
        // Arrange
        when(cifsContext.getConfig()).thenReturn(configuration);
        when(configuration.getOemEncoding()).thenReturn("X-INVALID-ENCODING-NOT-EXISTENT");

        // Act + Assert
        RuntimeException ex = assertThrows(RuntimeException.class, () -> NtlmUtil.getPreNTLMResponse(cifsContext, "password", new byte[8]));

        assertSame(t1, t2, "Expected same tree instance to be reused");
    }

    @ParameterizedTest
    @NullAndEmptySource
    @DisplayName("treeConnectLogon: invalid logon share throws SmbException")
    void testTreeConnectLogonInvalid(String logonShare) {
        SmbSessionImpl session = spy(newSession());
        when(configuration.getLogonShare()).thenReturn(logonShare);