title: "Reverse" wrong parsed date
body: <p>we run a REST-webservice which consumes different data, my current issue belongs to a date, received as String and parsed by a java.text.SimpleDateFormat (java 8):</p>
  
  <p>We received a lot (>50k) of 'wrong' formatted Strings, which were parsed by the SimpleDateFormat anyways.</p>
  
  <p>The SimpleDateFormat is configured with the pattern "yyyy-MM-dd".
  We received Strings the other way around "dd-MM-yyyy".</p>
  
  <p>For Example the String "07-07-1950" was parsed to the date "0012-10-31" (Starting from July in year 7, added 1950 days).</p>
  
  <p>We fixed the implementation, so these Strings are now parsed as expected. But we have all the corrupt dates in the system. The final question is now:</p>
  
  <p>Is there a way to conclude from the date "0012-10-31" to possible original inputs (e.g. "07-07-1950", "07-06-1980" and maybe more...)?</p>
  
  <p>Best regards</p>