public Integer getPid() {
      return pid;
    }
Gets the process ID (PID) of the running Locator indicated by the user as an argument to the
LocatorLauncher. This PID is used by the Locator launcher to determine the Locator's status,
or invoke shutdown on the Locator.

@return a user specified Integer value indicating the process ID of the running Locator.
@see #setPid(Integer)
geode-core/src/main/java/org/apache/geode/distributed/LocatorLauncher.java