// Check authentication
                HttpSession session = req.getSession(false);
                if (session != null && session.getAttribute("npa-workgroup") != null) {
                    // Authentication successful - mock directory operation
                    resp.setContentType("text/html");
                    doDirectory(req, resp, smbFile);

                assertNull(iterator1.next(), "First instance next() should return null");
                assertNull(iterator2.next(), "Second instance next() should return null");
                assertNull(iterator3.next(), "Third instance next() should return null");
            } catch (CIFSException e) {
                throw new RuntimeException(e);
            }

            return builder.execute();
        });
        final OpenSearchResultList<OpenSearchAccessResult> targetList = new OpenSearchResultList<>();
        final SearchHits hits = response.getHits();
        final TotalHits totalHits = hits.getTotalHits();
        final long totalHitsValue = totalHits != null ? totalHits.value() : 0;

   *
   * @return the replacement characters, or {@code null} if no escaping was required
   */
  @Override
  protected final char @Nullable [] escape(int cp) {
    if (cp < replacementsLength) {
      char[] chars = replacements[cp];
      if (chars != null) {
        return chars;
      }
    }
    if (cp >= safeMin && cp <= safeMax) {
      return null;
    }
    return escapeUnsafe(cp);
  }

  private static final Iterable<@Nullable Integer> iterableNull = Arrays.asList((Integer) null);
  private static final Iterable<@Nullable Integer> iterableNullNull =
      Arrays.asList((Integer) null, null);
  private static final Iterable<@Nullable Integer> iterableNull1 = Arrays.asList(null, 1);
  private static final Iterable<@Nullable Integer> iterable1Null = Arrays.asList(1, null);

                    return auth.logout(null, logoutRequestParams, true);
                } catch (final Exception e) {
                    logger.warn("Failed to logout from IdP: {}", samlUser, e);
                }
                return null;
            }).orElse(null);
        }
        return null;
    }

    @Override

      if (conscrypt != null) {
        return conscrypt
      }
    }

    if (isBouncyCastlePreferred) {
      val bc = BouncyCastlePlatform.buildIfSupported()

      if (bc != null) {
        return bc
      }
    }

    if (isOpenJSSEPreferred) {
      val openJSSE = OpenJSSEPlatform.buildIfSupported()

      if (openJSSE != null) {
        return openJSSE
      }
    }

          responseQueue.put(new Response(request.methodName, null, exception.getTargetException()));
          continue;
        } catch (Throwable throwable) {
          responseQueue.put(new Response(request.methodName, null, throwable));
          continue;
        }
        responseQueue.put(new Response(request.methodName, result, null));
      }
    } catch (ThreadDeath death) {
      return;

            byte[] buf;

            if (this.freeBuffers > 0) {
                for (int i = 0; i < this.cache.length; i++) {
                    if (this.cache[i] != null) {
                        buf = (byte[]) this.cache[i];
                        this.cache[i] = null;
                        this.freeBuffers--;
                        return buf;
                    }
                }
            }

    fakeTicker.advance(2, MILLISECONDS);
    assertEquals(null, cache.getIfPresent(10));
    assertEquals(null, cache.getIfPresent(20));
    assertEquals(null, cache.getIfPresent(4));

    cache.put(10, 20);
    assertEquals(Integer.valueOf(20), cache.getIfPresent(10));

    fakeTicker.advance(1000, MILLISECONDS);
    assertEquals(null, cache.getIfPresent(10));
  }