assertNotSame(supplied, got, "Zero-sized cache must not return the released instance");
    }

    // Edge: releasing null must be a no-op without exceptions
    @Test
    @DisplayName("releaseBuffer(null) is a no-op and does not throw")
    void releaseNullIsNoop() {
        BufferCacheImpl impl = new BufferCacheImpl(1, 4);

    @BeforeEach
    public void setUp() throws Exception {
        masterPassword = "MasterPassword123!@#".toCharArray();
        storage = new SecureCredentialStorage(masterPassword.clone());
    }

    @AfterEach
    public void tearDown() throws Exception {
        if (storage != null && !storage.isDestroyed()) {
            try {
                storage.close();
            } catch (Exception e) {

  private static boolean hasConstructorUsableByGetChecked(
      Class<? extends Exception> exceptionClass) {
    try {
      Exception unused = newWithCause(exceptionClass, new Exception());
      return true;
    } catch (Throwable t) { // sneaky checked exception
      return false;
    }
  }

  private static <X extends Exception> X newWithCause(Class<X> exceptionClass, Throwable cause) {

 * credentials are retrieved from the {@code jcifs.smb.client.domain},
 * {@code jcifs.smb.client.username}, and {@code jcifs.smb.client.password}
 * properties.
 * <p>
 * Read <a href="../../../authhandler.html">jCIFS Exceptions and
 * NtlmAuthenticator</a> for related information.
 *
 * @deprecated use {@link NtlmPasswordAuthenticator} instead
 */
@Deprecated
public class NtlmPasswordAuthentication extends NtlmPasswordAuthenticator {

        // Try to execute - should be blocked with CIFSException
        CIFSException exception = assertThrows(CIFSException.class, () -> {
            circuitBreaker.executeWithCircuitBreaker(() -> "should not execute");
        }, "Circuit breaker should throw CIFSException when open");

        assertTrue(exception.getMessage().contains("Circuit breaker 'test' is open"), "Exception message should indicate circuit is open");
    }

    @Test

        // Test polymorphic behavior
        SearchLogEvent[] events = { event1, event2, event3 };

        for (SearchLogEvent event : events) {
            // All methods should be callable without exceptions
            String id = event.getId();
            Long version = event.getVersionNo();
            Map<String, Object> source = event.toSource();
            String type = event.getEventType();

   * this method is guaranteed to be called once the computation is complete.
   *
   * <p>Exceptions thrown by a listener will be propagated up to the executor. Any exception thrown
   * during {@code Executor.execute} (e.g., a {@code RejectedExecutionException} or an exception
   * thrown by {@linkplain MoreExecutors#directExecutor direct execution}) will be caught and
   * logged.
   *

   * this method is guaranteed to be called once the computation is complete.
   *
   * <p>Exceptions thrown by a listener will be propagated up to the executor. Any exception thrown
   * during {@code Executor.execute} (e.g., a {@code RejectedExecutionException} or an exception
   * thrown by {@linkplain MoreExecutors#directExecutor direct execution}) will be caught and
   * logged.
   *

    - how-to/testing-database.md
- Reference (Code API):
  - reference/index.md
  - reference/fastapi.md
  - reference/parameters.md
  - reference/status.md
  - reference/uploadfile.md
  - reference/exceptions.md
  - reference/dependencies.md
  - reference/apirouter.md
  - reference/background.md
  - reference/request.md
  - reference/websockets.md
  - reference/httpconnection.md
  - reference/response.md

   * to perform more efficiently.
   *
   * <p>An escaper is expected to be able to deal with any {@code char} value, so this method should
   * not throw any exceptions.
   *
   * @param c the character to escape if necessary
   * @return the replacement characters, or {@code null} if no escaping was needed
   */
  protected abstract char @Nullable [] escape(char c);

  /**