public String getMember() {
    if (isNotBlank(getMemberName())) {
      return getMemberName();
    }
    if (isNotBlank(getMemberId())) {
      return getMemberId();
    }
    return null;
  }
Gets the name or ID of the member in the GemFire distributed system. This method prefers name
if specified, otherwise the ID is returned. If name was not specified to the Builder that
created this Launcher and this call is not in-process, then null is returned.

@return a String value indicating the member's name if specified, otherwise the member's ID is
        returned if this call is made in-process, or finally, null is returned if neither name
        name was specified or the call is out-of-process.
@see #getMemberName()
@see #getMemberId()
geode-core/src/main/java/org/apache/geode/distributed/AbstractLauncher.java