* to dump the queue into a newly allocated array of {@code String}:
   *
   * <pre>
   *     String[] y = x.toArray(new String[0]);</pre>
   *
   * <p>Note that {@code toArray(new Object[0])} is identical in function to {@code toArray()}.
   *
   * @param a the array into which the elements of the queue are to be stored, if it is big enough;

                if (fessConfig.isValidSearchLogPermissions(roles.toArray(new String[roles.size()]))) {
                    suggester.indexer().indexFromSearchWord(sb.toString(), fields.toArray(new String[fields.size()]),
                            tags.toArray(new String[tags.size()]), roles.toArray(new String[roles.size()]), 1, langs);
                    duplicateSessionMap.put(sessionId, requestedAt);

      return super.size();
    }

    @Override
    public Object[] toArray() {
      assertTrue(Thread.holdsLock(mutex));
      return super.toArray();
    }

    @Override
    public <T> T[] toArray(T[] a) {
      assertTrue(Thread.holdsLock(mutex));
      return super.toArray(a);
    }

    private static final long serialVersionUID = 0;
  }

    class KeySetImpl extends KeySetView {
      @Override
      public @Nullable Object[] toArray() {
        return ObjectArrays.toArrayImpl(this);
      }

      @Override
      @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
      public <T extends @Nullable Object> T[] toArray(T[] a) {
        return ObjectArrays.toArrayImpl(this, a);
      }

      @Override

    return new SafeTreeSet<>(delegate.tailSet(checkValid(fromElement), inclusive));
  }

  @Override
  public Object[] toArray() {
    return delegate.toArray();
  }

  @Override
  public <T> T[] toArray(T[] a) {
    return delegate.toArray(a);
  }

  @CanIgnoreReturnValue
  private <T> T checkValid(T t) {
    // a ClassCastException is what's supposed to happen!

    }
    return standardAddAll(collection);
  }

  @Override
  @J2ktIncompatible // Incompatible return type change. Use inherited implementation
  public Object[] toArray() {
    /*
     * If we could, we'd declare the no-arg `Collection.toArray()` to return "Object[] but elements
     * have the same nullness as E." Since we can't, we declare it to return nullable elements, and

      Set<Object> expected = Maps.newHashMap(cache.asMap()).keySet();
      assertThat(keys).containsExactlyElementsIn(expected);
      assertThat(keys.toArray()).asList().containsExactlyElementsIn(expected);
      assertThat(keys.toArray(new Object[0])).asList().containsExactlyElementsIn(expected);

      new EqualsTester()
          .addEqualityGroup(cache.asMap().keySet(), keys)

        Object o6 = list.get(5);
        Object[] rest = list.subList(6, list.size()).toArray();
        return ImmutableSet.of(o1, o2, o3, o4, o5, o6, rest);
      }
    },
    COPY_OF_ARRAY {
      @Override
      public ImmutableSet<Object> create(List<?> list) {
        return ImmutableSet.copyOf(list.toArray());
      }
    },
    COPY_OF_LIST {
      @Override

        if (StringUtil.isNotBlank(value)) {
            split(value, ",").of(stream -> stream.forEach(list::add));
        }
        return list.stream().filter(StringUtil::isNotBlank).map(String::trim).toArray(n -> new String[n]);
    }

    protected String[] getDefaultRolesAsArray() {
        final List<String> list = new ArrayList<>();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        return parent.subList(fromIndex, toIndex);
    }

    @Override
    public Object[] toArray() {
        return parent.toArray();
    }

    @Override
    public <T> T[] toArray(final T[] a) {
        return parent.toArray(a);
    }

    public int getStart() {
        return start;
    }

    public int getOffset() {
        return offset;