* requireNonNull is safe because we don't null out `sequencer` except:
       *
       * - after the requireNonNull call below. (And this object has its Runnable.run override
       *   called only once, just as it has its Executor.execute override called only once.)
       *
       * - if we return immediately from `execute` (in which case we never get here)
       *

        configHelper.setLoadCallback(() -> {
            latch.countDown();
            return 1;
        });

        configHelper.update();

        assertTrue("Load method should be called within 5 seconds", latch.await(5, TimeUnit.SECONDS));
        assertEquals(1, configHelper.getLoadCallCount());
    }

    @Test
    public void test_update_multipleCallsIncrementLoadCount() throws InterruptedException {

    // JVM shutdown will not be prevented from exiting after this service has stopped or failed.
    // Technically this listener is added after start() was called so it is a little gross, but it
    // is called within doStart() so we know that the service cannot terminate or fail concurrently
    // with adding this listener so it is impossible to miss an event that we are interested in.
    addListener(

        ServerMessageBlock response = new SmbComOpenAndXResponse();

        // Execute send
        tree.send(request, response);

        // Verify session.send was called and tid was set
        verify(session).send(request, response);
        assertEquals(123, request.tid);
    }

    @Test
    void testSendWithDfs() throws SmbException {

	return syscall.Exec(argv0, os.Args, os.Environ())
}

// freezeServices will freeze all incoming S3 API calls.
// For each call, unfreezeServices must be called once.
func freezeServices() {
	// Use atomics for globalServiceFreeze, so we can read without locking.
	// We need a lock since we are need the 2 atomic values to remain in sync.
	globalServiceFreezeMu.Lock()

    // be deleted.
    Map<K, @Nullable V> duplicates = null;
    int dupCount = 0;
    for (int i = 0; i < n; i++) {
      // requireNonNull is safe because the first `n` elements have been filled in.
      entryArray[i] = makeImmutable(requireNonNull(entryArray[i]));
      K key = entryArray[i].getKey();
      V value = entryArray[i].getValue();
      V oldValue = delegateMap.put(key, value);

 *
 * <p>If your iterator supports modification through {@code remove()}, you may wish to override the
 * verify() method, which is called after each sequence and is guaranteed to be called
 * using the latest values obtained from {@link IteratorTester#newTargetIterator()}.
 *
 * <p>The value you pass to the parameter {@code steps} should be greater than the length of your

            parser.parse(is, this);
        } catch (final Exception e) {
            throw new GsaConfigException("Failed to parse XML file.", e);
        }
    }

    /**
     * SAX event handler called at the beginning of document parsing.
     * Initializes internal data structures for processing the GSA configuration.
     *
     * @throws SAXException if a SAX error occurs during initialization
     */
    @Override

import org.junit.jupiter.api.Test;

public class ThreadDumpUtilTest extends UnitFessTestCase {

    @Test
    public void test_printThreadDump() {
        // This test verifies that printThreadDump() method exists and can be called without exceptions
        try {
            ThreadDumpUtil.printThreadDump();
        } catch (Exception e) {
            fail("printThreadDump() should not throw exceptions: " + e.getMessage());
        }
    }

    mock_dumps.assert_not_called()


def test_explicit_response_class_uses_json_dumps():
    """When response_class is explicitly set to JSONResponse, the normal path
    is used and json.dumps is called via JSONResponse.render()."""
    with patch(
        "starlette.responses.json.dumps", wraps=__import__("json").dumps
    ) as mock_dumps:
        response = client.get("/explicit")
    assert response.status_code == 200