if (logger.isDebugEnabled()) {
            logger.debug("User {} operation initiated: username={}, id={}", isUpdate ? "update" : "create", username,
                    user.getId() != null ? user.getId() : "new");
        }

        try {
            if (StringUtil.isBlank(user.getSurname())) {
                user.setSurname(user.getName());
            }

              notifyStarted();
            } catch (Throwable t) {
              restoreInterruptIfIsInterruptedException(t);
              notifyFailed(t);
              if (runningTask != null) {
                // prevent the task from running if possible
                runningTask.cancel(false);
              }
            } finally {
              lock.unlock();
            }
          });

  }

  public void testStringConverter_nullConversions() {
    assertThat(Longs.stringConverter().convert(null)).isNull();
    assertThat(Longs.stringConverter().reverse().convert(null)).isNull();
  }

  public void testStringConverter_reverse() {
    Converter<String, Long> converter = Longs.stringConverter();

        assertSame(rootCause, exception.getCause().getCause());
    }

    @Test
    public void test_nullMessage() {
        final LlmException exception = new LlmException(null);
        assertNull(exception.getMessage());
    }

    @Test
    public void test_emptyMessage() {
        final LlmException exception = new LlmException("");
        assertEquals("", exception.getMessage());

  private boolean methodCalled;
  private @Nullable Object methodArgument;

  @Override
  protected void setUp() throws Exception {
    bus = new EventBus();
    methodCalled = false;
    methodArgument = null;
  }

  public void testCreate() {
    Subscriber s1 = Subscriber.create(bus, this, getTestSubscriberMethod("recordingMethod"));
    assertThat(s1).isInstanceOf(Subscriber.SynchronizedSubscriber.class);

     */
    @Override
    public InetAddress[] resolve(final String host) throws UnknownHostException {
        // Handle IPv6 addresses in bracket notation
        if (host != null && host.length() > 2 && host.startsWith("[") && host.endsWith("]")) {
            // Remove brackets for IPv6 address resolution
            final String ipv6Address = host.substring(1, host.length() - 1);

      Set<E> es = elementSet;
      return (es == null) ? elementSet = createElementSet() : es;
    }

    @LazyInit transient @Nullable Set<Multiset.Entry<E>> entrySet;

    @SuppressWarnings("unchecked")
    @Override
    public Set<Multiset.Entry<E>> entrySet() {
      Set<Multiset.Entry<E>> es = entrySet;
      return (es == null)
          // Safe because the returned set is made unmodifiable and Entry

      Set<E> es = elementSet;
      return (es == null) ? elementSet = createElementSet() : es;
    }

    @LazyInit transient @Nullable Set<Multiset.Entry<E>> entrySet;

    @SuppressWarnings("unchecked")
    @Override
    public Set<Multiset.Entry<E>> entrySet() {
      Set<Multiset.Entry<E>> es = entrySet;
      return (es == null)
          // Safe because the returned set is made unmodifiable and Entry

  }

  @Override
  public boolean contains(@Nullable Object object) {
    if (object instanceof Entry) {
      Entry<?, ?> entry = (Entry<?, ?>) object;
      V value = map().get(entry.getKey());
      return value != null && value.equals(entry.getValue());
    }
    return false;
  }

  @Override
  boolean isPartialView() {
    return map().isPartialView();
  }

  @Override
  @GwtIncompatible // not used in GWT

      }

      @Override
      public V next() {
        return entryItr.next().getValue();
      }
    };
  }

  @Override
  public boolean contains(@Nullable Object object) {
    return object != null && Iterators.contains(iterator(), object);
  }

  @Override
  boolean isPartialView() {
    return true;
  }

  @Override
  public ImmutableList<V> asList() {