@Override
  public String getLog() {
    String childTail = null;
    String mainTail = null;
    GemFireVM vm = getGemFireVM();
    if (vm != null) {
      String[] log = vm.getSystemLogs();
      if (log != null && log.length > 0) {
        mainTail = log[0];
      }
      if (log != null && log.length > 1) {
        childTail = log[1];
      }
    }

    if (childTail == null && mainTail == null) {
      return "No log file configured, log messages will be directed to stdout.";
    } else {
      StringBuilder result = new StringBuilder();
      if (mainTail != null) {
        result.append(mainTail);
      }
      if (childTail != null) {
        result.append(
            "\n" + "-------------------- tail of child log --------------------" + "\n");
        result.append(childTail);
      }
      return result.toString();
    }
  }
Returns a <code>Config</code> object with the appropriate default values for a newly-created
system member.
geode-core/src/main/java/org/apache/geode/admin/internal/SystemMemberImpl.java