*  **There is no longer a global singleton connection pool.** In OkHttp 2.x,
    all `OkHttpClient` instances shared a common connection pool by default.
    In OkHttp 3.x, each new `OkHttpClient` gets its own private connection pool.
    Applications should avoid creating many connection pools as doing so
    prevents connection reuse. Each connection pool holds its own set of

     *
     * * **Stale pooled connections.** The [ConnectionPool] reuses sockets
     *   to decrease request latency, but these connections will occasionally time out.
     *
     * * **Unreachable proxy servers.** A [ProxySelector] can be used to
     *   attempt multiple proxy servers in sequence, eventually falling back to a direct
     *   connection.
     *

    /** Task for monitoring idle connections */
    private TimeoutTask connectionMonitorTask;

    /** Connection timeout in milliseconds */
    protected Integer connectionTimeout;

    /** Maximum total number of connections */
    protected Integer maxTotalConnections;

    /** Maximum connections per route */
    protected Integer maxConnectionsPerRoute;

    /** Task for monitoring idle connections */
    private TimeoutTask connectionMonitorTask;

    /** Connection timeout in milliseconds */
    protected Integer connectionTimeout;

    /** Maximum total number of connections */
    protected Integer maxTotalConnections;

    /** Maximum connections per route */
    protected Integer maxConnectionsPerRoute;

password             (string)    MQTT password
qos                  (number)    set the quality of service priority, defaults to '0'
keep_alive_interval  (duration)  keep-alive interval for MQTT connections in s,m,h,d
reconnect_interval   (duration)  reconnect interval for MQTT connections in s,m,h,d
queue_dir            (path)      staging dir for undelivered messages e.g. '/home/events'

    )
    val connections: MutableList<RealConnection?> = ArrayList()
    val localClient =
      client
        .newBuilder()
        .eventListener(
          object : EventListener() {
            override fun connectionAcquired(
              call: Call,
              connection: Connection,
            ) {
              connections.add(connection as RealConnection)
            }

     */
    private void handleNodeAvailable(WitnessNotification notification) {
        log.info("Node available: {}", notification.getResourceName());
        // Node is back online - could rebalance connections
    }

    /**
     * Schedule a reconnection attempt
     *
     * @param delayMs delay in milliseconds
     */
    private void scheduleReconnection(long delayMs) {

/**
 * Manages LDAP connections and operations.
 */
public class LdapManager {
    private static final Logger logger = LogManager.getLogger(LdapManager.class);

    /** A thread-local variable to hold the directory context. */
    protected ThreadLocal<DirContextHolder> contextLocal = new ThreadLocal<>();

    /** A flag to indicate if the LDAP connection is bound. */
    protected volatile boolean isBind = false;

 * international domain names work everywhere. For example, "σ" encodes as "xn--4xa". The encoded
 * string is not human readable, but can be used with classes like [InetAddress] to establish
 * connections.
 *
 * ## Why another URL model?
 *
 * Java includes both [java.net.URL][URL] and [java.net.URI][URI]. We offer a new URL
 * model to address problems that the others don't.
 *

# The URL of the search engine HTTP endpoint.
# For IPv6 environments, use brackets around the IPv6 address (e.g., http://[::1]:9201)
search_engine.http.url=http://localhost:9201
# Path to SSL certificate authorities for secure HTTP connections.
search_engine.http.ssl.certificate_authorities=
# Username for authenticating to the search engine.
search_engine.username=
# Password for authenticating to the search engine.
search_engine.password=