Are you aware that SimpleDateFormat is not threadsafe, so you shouldn't have it as a static variable?
You might be hitting this issue - http://www.codefutures.com/weblog/andygrove/2007/10/simpledateformat-and-thread-safety.html Cheers, Simon On Wednesday, April 18, 2012 11:47:10 AM UTC+1, senderj wrote: > > I know it doesn't sounds like a GAE problem, but it is a very simple > coding and I only encounter this problem in GAE, so I post here for > help. > > My java servlet in GAE reads a web site and the problem happens when > extracting a date from html page and convert into Date object using > SimpleDateFormat. > > In servlet static > static final SimpleDateFormat dff = new SimpleDateFormat("dd/MM/yyyy > HH:mm"); > In servlet method > .... logic to extract date from html as text and stores to String > ss..... > try { > result = dff.parse(ss); > log.info("ss="+ss); > log.info("result="+result); > } catch (ParseException pe) { > log.warning("parse date exception"); > }//end try > > I've checked many times the pattern in dff is correct, and I never get > "parse date exception" in my log. Instead, here are some examples from > different runs in my log: > ss=18/04/2012 10:27 > result=Fri Apr 27 10:27:00 UTC 2012 > ss=18/04/2012 09:57 > result=Sun May 27 09:57:00 UTC 2012 > ss=18/04/2012 09:55 > result=Fri May 25 09:55:00 UTC 2012 > ss=18/04/2012 09:45 > result=Fri Sep 18 09:45:00 UTC 2015 > > First of all, it is not always like that. It happens about 10% of my > runs. Secondly, I have another program reading another web page but > also parse the date with same logic in GAE, and also encountered the > same problem with about the same chances. If anybody can figure out > what's wrong with my code please help. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/TODfLb4ABeMJ. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
