* its own.)
   */

  /** A special value to represent {@code null}. */
  static final Object NULL = new Object();

  /*
   * Despite declaring this field in AbstractFutureState, we still use the logger for
   * AbstractFuture: Users may have tests or log configuration that expects that to be the logger
   * used for exceptions from listeners, as it's been in the past.
   */

          // have no idea.
          // TODO(lukes): consider building everything in terms of ListenableScheduledFuture then
          // the AbstractService could monitor the future directly. Rescheduling is still hard...
          // but it would help with some of these lock ordering issues.
          scheduleFailure = e;
          toReturn = new FutureAsCancellable(immediateCancelledFuture());
        } finally {

        assertNotNull(respCap.getValue(), "Expected SmbComBlankResponse");

        verify(tree, times(1)).release();
    }

    @Test
    @DisplayName("close() does not send when invalid but still releases")
    void close_invalid_doesNotSend_butReleases() throws CIFSException {
        when(cfg.isTraceResourceUsage()).thenReturn(false);
        stubValidTree(3L, true, true);

        RuntimeCIFSException ex = assertThrows(RuntimeCIFSException.class, () -> handle.release());
        assertTrue(ex.getMessage().contains("below zero"));
        verify(treeConnection, times(1)).release(); // still only once
    }

    @Test
    @DisplayName("acquire after release reacquires underlying tree connection")
    void acquireAfterReleaseReacquires() {

   * <p>Whenever possible, it is preferable to test directly for some observable change resulting
   * from GC, as with {@link #awaitClear}. Because there are no guarantees for the order of GC
   * finalization processing, there may still be some unfinished work for the GC to do after this
   * method returns.
   *
   * <p>This method does not create any memory pressure as would be required to cause soft
   * references to be processed.
   *

 * @param <V> Value parameter type
 */
final class DirectedGraphConnections<N, V> implements GraphConnections<N, V> {
  /**
   * A wrapper class to indicate a node is both a predecessor and successor while still providing
   * the successor value.
   */
  private static final class PredAndSucc {
    private final Object successorValue;

    PredAndSucc(Object successorValue) {
      this.successorValue = successorValue;

         * ended up with a magic value that is not compatible with the type of the configured mojo parameter (a string
         * could still be converted by the configurator so we leave those alone). If so, back off to evaluating the
         * expression from properties only.
         */

			// version or alter its lock settings unless they have special
			// permissions. With governance mode, you protect objects against
			// being deleted by most users, but you can still grant some users
			// permission to alter the retention settings or delete the object
			// if necessary. You can also use governance mode to test retention-period
			// settings before creating a compliance-mode retention period.

// formValues is the already-canonicalized form values from the POST request.
func checkPostPolicy(formValues http.Header, postPolicyForm PostPolicyForm) error {
	// Check if policy document expiry date is still not reached
	if !postPolicyForm.Expiration.After(UTCNow()) {
		return fmt.Errorf("Invalid according to Policy: Policy expired")
	}

	// mustFindInPolicy is a map to list all the keys that we must find in the policy as

    // ... trigger server failover ...
    
    // Verify that witness notification was received and handled
    assertTrue(listener.waitForNotification(30000));  // 30 second timeout
    
    // Verify file is still accessible after failover
    assertTrue(file.exists());
}

@Test
public void testWitnessServiceDiscovery() throws Exception {
    CIFSContext context = getTestContext();