@Override
  public Integer getPid() {
    return pid;
  }
Gets the user-specified process ID (PID) of the running Locator that LocatorLauncher uses to
issue status and stop commands to the Locator.

@return an Integer value indicating the process ID (PID) of the running Locator.
geode-core/src/main/java/org/apache/geode/distributed/LocatorLauncher.java