return nil
}

func (target *MQTTTarget) init() error {
	return target.initOnce.Do(target.initMQTT)
}

func (target *MQTTTarget) initMQTT() error {
	args := target.args

	// Using hex here, to make sure we avoid 23
	// character limit on client_id according to
	// MQTT spec.
	clientID := fmt.Sprintf("%x", time.Now().UnixNano())

	options := mqtt.NewClientOptions().
		SetClientID(clientID).

    .build();
```

Client Authentication
---------------------

The above scenario is representative of most TLS set ups: the client uses certificates to validate
the identity of a server. The converse is also possible. Here we create a server that authenticates
a client and a client that authenticates a server.

```java
// Create the root for client and server to trust. We could also use different roots for each!

      Iterator<T> iterator = targetList.iterator();
      return peekingIterator(iterator);
    }

    @Override
    protected void verify(List<T> elements) {
      // verify same objects were removed from reference and target
      assertEquals(elements, targetList);
    }
  }

  private <T extends @Nullable Object> void actsLikeIteratorHelper(List<T> list) {
    // Check with modifiable copies of the list

  static {
    ImmutableSet.Builder<Long> testLongsBuilder = ImmutableSet.builder();
    ImmutableSet.Builder<BigInteger> testBigIntegersBuilder = ImmutableSet.builder();

    // The values here look like 111...11101...010 in binary, where the initial 111...1110 takes
    // up exactly as many bits as can be represented in the significand (24 for float, 53 for

                log.debug("Error releasing tree connection during emergency cleanup", e);
            }

            // Note: resourceLoc is final, cannot be set to null
            // Clear other mutable references would go here

        } catch (Exception e) {
            log.error("Failed to perform emergency tree handle cleanup", e);
        }
    }

    /**
     * {@inheritDoc}
     *

type queueItem struct {
	input []byte             // raw input sent to the worker
	dst   chan []jstream.KVS // result of block decode
	err   error              // any error encountered will be set here
}

// Read - reads single record.
// Once Read is called the previous record should no longer be referenced.
func (r *PReader) Read(dst sql.Record) (sql.Record, error) {

            findRemote.dependsOn(createCloneTaskProvider);
            // TODO Gradle should provide property based configuration here
            findRemote.setWorkingDir(gitExtension.getCheckoutDir().get());

            findRemote.setCommandLine(asList("git", "remote", "-v"));
            ByteArrayOutputStream output = new ByteArrayOutputStream();

latest Gradle releases as possible. In certain cases an update is blocked by a breaking behaviour
in Gradle. We're usually in contact with the gradle team here or working on a fix
in our build logic to resolve this.

**The Elasticsearch build will fail if any deprecated Gradle API is used.**

### Make a change in the build

    /*
     * `contents` is null only for instances of the subclass, ImmutableSortedMultiset.Builder. That
     * subclass overrides all the methods that access it here. Thus, all the methods here can safely
     * assume that this field is non-null.
     */
    @Nullable ObjectCountHashMap<E> contents;

    /**

   * </ul>
   *
   * <p><b>Examples</b> (all edges are directed facing downwards)
   *
   * <p>The graph below would be valid input with start nodes of {@code a, f, c}. However, if {@code
   * b} were <i>also</i> a start node, then there would be multiple paths to reach {@code e} and
   * {@code h}.
   *
   * {@snippet :
   *    a     b      c
   *   / \   / \     |
   *  /   \ /   \    |