logger.debug("Created chat session: sessionId={}, userId={}", session.getSessionId(), userId);
        }
        enforceMaxSize();
        return session;
    }

    /**
     * Finds a session by ID without updating the last accessed time.
     *
     * @param sessionId the session ID
     * @return the session, or null if not found or expired
     */

    taskFaker.runTasks()
    client.listener.assertClosing(1000, "Goodbye!")
    client.webSocket!!.finishReader()
    taskFaker.runTasks()
    assertThat(client.closed).isTrue()

    // Server and client both finished closing, connection is closed.
    server.listener.assertClosed(1000, "Hello!")
    client.listener.assertClosed(1000, "Goodbye!")
  }

  @Test
  fun clientCloseCancelsConnectionAfterTimeout() {

       *   or it had already failed. (It couldn't have completed *successfully* or even had
       *   setFuture called on it: Neither of those can happen until we've finished processing all
       *   the completed inputs. And we're still processing at least one input, the one that
       *   triggered handleException.)
       *

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

Underneath, the `open("./somefile.txt")` creates an object that is called a "Context Manager".

When the `with` block finishes, it makes sure to close the file, even if there were exceptions.

When you create a dependency with `yield`, **FastAPI** will internally create a context manager for it, and combine it with some other related tools.

                if (before == 1) {
                    // concurrent connection attempt
                    if (waitForState(transport) == 2) {
                        // finished connecting
                        return null;
                    }
                    // failure to connect
                    throw new SmbException("Tree disconnected while waiting for connection");

//
// If async execution is enabled, the call may simply enqueue the execution
// and return "non-ready" handles in `retvals`. Note that any handles contained
// in 'op' should not be mutated till the kernel execution actually finishes.
//
// For sync execution, if any of the inputs to `op` are not ready, this call
// will block till they become ready and then return when the kernel execution
// is done.

    --executor-cores 1 \
    examples/jars/spark-examples*.jar 10
```

The job should produce an output as shown below. Note the value of pi in the output.

```
17/03/22 23:21:10 INFO DAGScheduler: Job 0 finished: reduce at SparkPi.scala:38, took 1.302805 s
Pi is roughly 3.1445191445191445
```

Job status can also be viewed in a browser by navigating to the YARN ResourceManager Web UI and clicking on job history server information.

	for scanner.Scan() {
		t.Fatal("read should fail")
	}
	err := scanner.Err()
	if err != io.ErrUnexpectedEOF {
		t.Errorf("unexpected error: %v", err)
	}
}

// Test that Scan finishes if we have endless empty reads.
type endlessZeros struct{}

func (endlessZeros) Read(p []byte) (int, error) {
	return 0, nil
}

func TestBadReader(t *testing.T) {
	scanner := NewScanner(endlessZeros{})

      } catch (Throwable t) {
        logger.log(Level.SEVERE, "Error cleaning up after reference.", t);
      }
    }
  }

  /**
   * Iterates through the given loaders until it finds one that will load Finalizer.
   *
   * @return a {@link Class} for {@link Finalizer} or {@code null} if none of the loaders load it
   */
  private static @Nullable Class<?> loadFinalizer(FinalizerLoader... loaders) {

			if err != nil {
				return nil, err
			}
			nonExistentUsers = append(nonExistentUsers, ndn.String())
		}
	}
	return nonExistentUsers, nil
}

// LookupGroupMemberships - for each DN finds the set of LDAP groups they are a
// member of.
func (l *Config) LookupGroupMemberships(userDistNames []string, userDNToUsernameMap map[string]string) (map[string]set.StringSet, error) {
	conn, err := l.LDAP.Connect()