If you're using YYYY in your JVM service or %G in anything, fix it now
Here's some more information:The year number of the ISO week very often differs from the Gregorian year number for dates close to 1 January. For example, 29 December 2014 is ISO 2015-W1-1, i.e., it is in year 2015 instead of 2014.http://en.wikipedia.org/wiki/ISO_week_dateSpecifically, you should be using +%Y instead of +%G when passed into date, and 'yyyy' instead of 'YYYY' when used in Java.