} catch (final IOException e) {
                    throw new IORuntimeException(e);
                }
                return true;
            }, OptionalThing.empty());
            response.flushBuffer();
            if (logger.isDebugEnabled()) {
                logger.debug("Loaded {} docs", count);
            }

        try {
          testEqualsUsing(factory);
          return;
        } catch (ParameterNotInstantiableException e) {
          paramErrors.add(e);
        } catch (ParameterHasNoDistinctValueException e) {
          distinctValueErrors.add(e);
        } catch (InvocationTargetException e) {
          instantiationExceptions.add(e);
        } catch (FactoryMethodReturnsNullException e) {
          nullErrors.add(e);
        }

            CustomSizeValidator.class.getMethod("isValid", CharSequence.class, ConstraintValidatorContext.class);
            assertTrue("Required methods exist", true);
        } catch (final NoSuchMethodException e) {
            fail("Required methods should exist: " + e.getMessage());
        }
    }

    public void test_inheritance() {

            .findVirtual(clazz, "update", MethodType.methodType(void.class, ByteBuffer.class));
      } catch (ClassNotFoundException e) {
        throw new AssertionError(e);
      } catch (IllegalAccessException e) {
        // That API is public.
        throw newLinkageError(e);
      } catch (NoSuchMethodException e) {
        // Only introduced in Java 9.
        return null;
      }
    }

  @Override
  protected SortedMap<K, V> makeEitherMap() {
    try {
      return makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return makeEmptyMap();
    }
  }

  public void testTailMapWriteThrough() {
    SortedMap<K, V> map;
    try {
      map = makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return;
    }
    if (map.size() < 2 || !supportsPut) {
      return;

  @Override
  protected SortedMap<K, V> makeEitherMap() {
    try {
      return makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return makeEmptyMap();
    }
  }

  public void testTailMapWriteThrough() {
    SortedMap<K, V> map;
    try {
      map = makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return;
    }
    if (map.size() < 2 || !supportsPut) {
      return;

        String username = "nonexistentuser";

        try {
            throw new FessUserNotFoundException(username);
        } catch (FessUserNotFoundException e) {
            assertEquals("User is not found: nonexistentuser", e.getMessage());
            assertNull(e.getCause());
        } catch (Exception e) {
            fail("Should have caught FessUserNotFoundException");
        }
    }

                                return;
                            }
                        } catch (final InterruptedRuntimeException e) {
                            return;
                        }
                    }
                } catch (final IOException e) {
                    logger.debug("I/O exception.", e);
                }
            }, "ProcessCommand");

    }

    private void deleteDirectory(Path dir) throws IOException {
        Files.walk(dir).sorted((a, b) -> b.compareTo(a)).forEach(path -> {
            try {
                Files.delete(path);
            } catch (IOException e) {
                // Ignore
            }
        });
    }

    public void test_getThemeName() {
        Artifact artifact = new Artifact("fess-theme-simple", "1.0.0");

            fail("Should throw FessSystemException");
        } catch (FessSystemException e) {
            assertEquals("Invalid format: 12", e.getMessage());
        }

        try {
            IntervalControlHelper.parseTime("12:30:45");
            fail("Should throw FessSystemException");
        } catch (FessSystemException e) {
            assertEquals("Invalid format: 12:30:45", e.getMessage());