public void clear() {
    port = null;
    maxThreads = null;
    bindAddress = null;
    maxConnections = null;
    maxMessageCount = null;
    socketBufferSize = null;
    messageTimeToLive = null;
    hostnameForClients = null;
    disableDefaultServer = null;
  }
GEODE-5256: Parameters containing startup options specified by the user.
Shared from ServerLauncher during startup, and available to other internal classes through static
accessors.
geode-core/src/main/java/org/apache/geode/distributed/ServerLauncherParameters.java