String not = new String("a");

    Interner<String> pool = Interners.newStrongInterner();
    assertThat(pool.intern(canonical)).isSameInstanceAs(canonical);
    assertThat(pool.intern(not)).isSameInstanceAs(canonical);
  }

  public void testStrong_null() {
    Interner<String> pool = Interners.newStrongInterner();
    assertThrows(NullPointerException.class, () -> pool.intern(null));
  }

  public void testStrong_builder() {

    String not = new String("a");

    Interner<String> pool = Interners.newStrongInterner();
    assertThat(pool.intern(canonical)).isSameInstanceAs(canonical);
    assertThat(pool.intern(not)).isSameInstanceAs(canonical);
  }

  public void testStrong_null() {
    Interner<String> pool = Interners.newStrongInterner();
    assertThrows(NullPointerException.class, () -> pool.intern(null));
  }

  public void testStrong_builder() {

 1. It uses the URL and configured OkHttpClient to create an **address**. This address specifies how we'll connect to the webserver.
 2. It attempts to retrieve a connection with that address from the **connection pool**.
 3. If it doesn't find a connection in the pool, it selects a **route** to attempt. This usually means making a DNS request to get the server's IP addresses. It then selects a TLS version and proxy server if necessary.

    // pool ID but a thread ID of 2.
    Thread thread2 = threadFactory.newThread(monitoredRunnable);
    checkThreadPoolName(thread2, 2);
    assertThat(thread2.getName().substring(0, thread.getName().lastIndexOf('-')))
        .isEqualTo(thread.getName().substring(0, thread.getName().lastIndexOf('-')));

    // Building again should give us a different pool ID.
    ThreadFactory threadFactory2 = builder.build();

 *   <li><b>Total nodes:</b> 65535 (16-bit index in the trie)
 *   <li><b>String pool size:</b> 65535 characters (16-bit offset in the String Pool)
 *   <li><b>Max children per node:</b> 2047 (11-bit count in the bitfield)
 * </ul>
 *
 * <p>As of Jan 2026, the capacity usage is approximately:
 *
 * <ul>
 *   <li>Total nodes: ~16% (10k / 65k)
 *   <li>String pool size: ~79% (52k / 65k)
 *   <li>Max children per node: ~71% (1.5k / 2k)
 * </ul>

    // pool ID but a thread ID of 2.
    Thread thread2 = threadFactory.newThread(monitoredRunnable);
    checkThreadPoolName(thread2, 2);
    assertThat(thread2.getName().substring(0, thread.getName().lastIndexOf('-')))
        .isEqualTo(thread.getName().substring(0, thread.getName().lastIndexOf('-')));

    // Building again should give us a different pool ID.
    ThreadFactory threadFactory2 = builder.build();

	//   connPool: A connection pool that provides database connections.
	//   locker: A synchronization lock that is unlocked after initialization to avoid deadlocks.
	// Returns:
	//   *Stmt: A newly created statement object for executing SQL operations.
	//   error: An error if the statement preparation fails.
	New(ctx context.Context, key string, isTransaction bool, connPool ConnPool, locker sync.Locker) (*Stmt, error)

            TimeoutRecordingMockHttpURLConnection mock = new TimeoutRecordingMockHttpURLConnection(u);
            return mock;
        });
        ForkJoinPool pool = new ForkJoinPool(1);
        req.threadPool(pool);

        // ## Act ##
        req.execute(response -> {
            threadName.set(Thread.currentThread().getName());
            latch.countDown();
        }, e -> {

            throw new CurlException("Invalid encoding: " + encoding, e);
        }
    }

    /**
     * Sets the thread pool for executing the request.
     *
     * @param threadPool the thread pool
     * @return this CurlRequest instance
     */
    public CurlRequest threadPool(final ForkJoinPool threadPool) {
        this.threadPool = threadPool;
        return this;

 * <li>{@link #analyzer} - Suggest analyzer.</li>
 * <li>{@link #contentsParser} - Contents parser.</li>
 * <li>{@link #suggestWriter} - Suggest writer.</li>
 * <li>{@link #threadPool} - Executor service for thread pool.</li>
 * </ul>
 */
public class SuggestIndexer {
    private final static Logger logger = LogManager.getLogger(SuggestIndexer.class);

    /** The suggest analyzer. */
    protected SuggestAnalyzer analyzer;