Hi,
We are using Jira Version: 4.4.5. In our jira
jira.date.picker.java.format: MM/dd/yyyy
jira.date.picker.javascript.format: %m/%d/%Y
But when we are editing or creating an issue. In the date fields jira is accepting five digit year format for eg: 03/06/20113. Because of that we are getting problem.