public static DateFormat createDateFormat() {
    return new SimpleDateFormat(FORMAT_STRING);
  }
Creates a SimpleDateFormat using {@link #FORMAT_STRING}.

Thread Safety Issue: (From SimpleDateFormat) Date formats are not synchronized. It is
recommended to create separate format instances for each thread. If multiple threads access a
format concurrently, it must be synchronized externally.
geode-core/src/main/java/org/apache/geode/internal/logging/DateFormatter.java