Error: null null The error occurred on line -1.
Stack Trace: java.lang.NullPointerException
I have come across these errors in the past and every single one of them is a result of a date function going awry.
One example is a client of mine using a drop down box to "create" a date. They would have a drop down for the month, a drop down for the day (31 days), then one for the year. On the action page, this line of code exists:
<!--- This is not a date so do something --->
I have come across this error multiple times, and it has always been a date issue. If you're getting a similar error, review those dates!