for (int index = 0; index < size; index++) {
        sum += arrayList.get(index).hashCode();
      }
    }
    return sum;
  }

  @Benchmark
  int arrayListIndexedLength(int reps) {
    int sum = 0;
    for (int i = 0; i < reps; i++) {
      for (int index = 0; index < arrayList.size(); index++) {
        sum += arrayList.get(index).hashCode();
      }
    }
    return sum;
  }

long maxAccessCount = 0         // Max URLs (0 = unlimited)
```

### CrawlerThread (`CrawlerThread.java`)

Worker thread for crawling.

**Flow**: Poll URL → Validate → Get client → Delay → Check last-modified → Execute → Process → Extract children → Queue children → Delay

### CrawlerClientFactory

Pattern-based client selection using `LinkedHashMap<Pattern, CrawlerClient>`.

    public String[] getExtraQueries() {
        return stream(ex_q).get(stream -> stream.filter(StringUtil::isNotBlank).distinct().toArray(n -> new String[n]));
    }

    @Override
    public Map<String, String[]> getFields() {
        return fields;
    }

    @Override
    public String[] getLanguages() {

        MavenProject mavenProject = new MavenProject();
        project = new DefaultProject(session, mavenProject);
        artifact = Mockito.mock(ProducedArtifact.class);
        artifactPath = Paths.get("");
        DefaultVersionParser versionParser =
                new DefaultVersionParser(new DefaultModelVersionParser(new GenericVersionScheme()));
        projectManager = new DefaultProjectManager(session, artifactManager);

    checkNotNull(key);
    clearCache();
    return backingMap.remove(key);
  }

  final void clear() {
    clearCache();
    backingMap.clear();
  }

  @Nullable V get(Object key) {
    checkNotNull(key);
    V value = getIfCached(key);
    // TODO(b/192579700): Use a ternary once it no longer confuses our nullness checker.
    if (value == null) {
      return getWithoutCaching(key);

/**
 * See https://docs.oracle.com/javase/8/docs/technotes/tools/findingclasses.html#userclass
 */
private
val File.isClassPathArchive
    get() = extension.run { equals("jar", ignoreCase = true) || equals("zip", ignoreCase = true) }


private
val String.isClassFilePath
    get() = endsWith(CLASS_FILE_EXTENSION)
        && !endsWith("package-info$CLASS_FILE_EXTENSION")
        && !matches(compilerGeneratedClassFilePath)

class Item(BaseModel):
    name: str
    description: Optional[str] = None


app = FastAPI(separate_input_output_schemas=False)


@app.post("/items/")
def create_item(item: Item):
    return item


@app.get("/items/")
def read_items() -> list[Item]:
    return [
        Item(
            name="Portal Gun",
            description="Device to travel through the multi-rick-verse",
        ),
        Item(name="Plumbus"),

    model_config = {"extra": "forbid"}

    limit: int = Field(100, gt=0, le=100)
    offset: int = Field(0, ge=0)
    order_by: Literal["created_at", "updated_at"] = "created_at"
    tags: list[str] = []


@app.get("/items/")
async def read_items(filter_query: Annotated[FilterParams, Query()]):

responses = {
    404: {"description": "Item not found"},
    302: {"description": "The item was moved"},
    403: {"description": "Not enough privileges"},
}


app = FastAPI()


@app.get(
    "/items/{item_id}",
    response_model=Item,
    responses={**responses, 200: {"content": {"image/png": {}}}},
)
async def read_item(item_id: str, img: Union[bool, None] = None):
    if img:

class User(BaseModel):
    username: str
    email: str


@app.post("/items/", response_model=ResponseMessage, tags=["items"])
async def create_item(item: Item):
    return {"message": "Item received"}


@app.get("/items/", response_model=list[Item], tags=["items"])
async def get_items():
    return [
        {"name": "Plumbus", "price": 3},
        {"name": "Portal Gun", "price": 9001},
    ]