.done(response -> { /* handle success */ })
    .error(throwable -> { /* handle error */ });
```

---

## Important Notes

### Thread Safety
- **Suggester**: Thread-safe for queries
- **SuggestIndexer**: Thread-safe for indexing
- **SuggestSettings**: NOT thread-safe for modifications

### Performance
- Use batch operations for indexing (100-500 items)
- Don't call `refresh()` too frequently

  }

  private fun sleep(delayMillis: Int) {
    try {
      Thread.sleep(delayMillis.toLong())
    } catch (e: InterruptedException) {
      Thread.currentThread().interrupt()
    }
  }

  private fun interruptLater(delayMillis: Int) {
    val toInterrupt = Thread.currentThread()
    val interruptingCow =
      Thread {
        sleep(delayMillis)
        toInterrupt.interrupt()
      }

            }
            currentProcess = null;

        }
    }

    /**
     * Monitor thread that handles process timeout and termination.
     * This thread sleeps for the specified timeout duration and terminates the process if it hasn't finished.
     */
    protected static class MonitorThread extends Thread {
        /** The process to monitor. */
        private final Process process;

 * (method {@link #add}) are contended across threads, the set of variables may grow dynamically to
 * reduce contention. Method {@link #sum} (or, equivalently, {@link #longValue}) returns the current
 * total combined across the variables maintaining the sum.
 *
 * <p>This class is usually preferable to {@link AtomicLong} when multiple threads update a common

        @Test
        @DisplayName("Should handle received notification")
        void testReceived() throws InterruptedException {
            CountDownLatch latch = new CountDownLatch(1);

            Thread waiter = new Thread(() -> {
                synchronized (response) {
                    try {
                        if (!response.isReceived()) {
                            response.wait(1000);
                        }

        final ClassLoader context = Thread.currentThread().getContextClassLoader();
        try {
            final ClassLoader cl = new URLClassLoader(new URL[0], getClass().getClassLoader());
            Thread.currentThread().setContextClassLoader(cl);
            assertThat(ClassLoaderUtil.getClassLoader(TestCase.class), is(sameInstance(cl)));
        } finally {
            Thread.currentThread().setContextClassLoader(context);

// that pass integers back and forth.  No actual
// concurrency, just threads and synchronization
// and foreign code on multiple pthreads.

package main

import (
	big "."
	"runtime"
)

func fibber(c chan *big.Int, out chan string, n int64) {
	// Keep the fibbers in dedicated operating system
	// threads, so that this program tests coordination
	// between pthreads and not just goroutines.

        method.setAccessible(true);

        // Test with null thread
        try {
            method.invoke(crawler, (Thread) null);
        } catch (Exception e) {
            fail("Should not throw exception with null thread");
        }

        // Test with normal thread
        Thread testThread = new Thread(() -> {
            try {

 *
 * It is possible to cancel the finding process by canceling its call.
 *
 * Implementations of this interface are not thread-safe. Each instance is thread-confined to the
 * thread executing the call.
 */
interface RoutePlanner {
  val address: Address

  /** Follow-ups for failed plans and plans that lost a race. */
  val deferredPlans: ArrayDeque<Plan>

    void testMonotonicBehavior() throws InterruptedException {
        Instant first = MonotonicClock.now();
        Thread.sleep(10); // Small delay
        Instant second = MonotonicClock.now();
        Thread.sleep(10); // Small delay
        Instant third = MonotonicClock.now();

        assertTrue(first.isBefore(second), "Time should progress forward between measurements");