Day.<init>() has thrown an IllegalArgumentException

We found this prefix in 2 webpages.
MapChildren (2)Typical messages (2)TraceDetailed Map
  1. java.lang.IllegalArgumentException
    1.   at org.jfree.date.SpreadsheetDate.<init>()
    2.   at org.jfree.date.SerialDate.createInstance()
    3.   at org.jfree.data.time.Day.<init>()
  1. ksar : a sar grapher / Bugs / #13 kSar cannot handle output from sysstat 9.1.x

    First:3 years ago
    Last:3 years ago
  2. Help Adding Months to Gregorian Calendar

    First:12 years ago
    Last:2 years ago
    Author:k caster
MessageNumber of crashes
The 'year' argument must be in range 1900 to 9999.1
The 'month' argument must be in the range 1 to 12.1
  1. java.lang.IllegalArgumentException
    1.   at org.jfree.date.SpreadsheetDate.<init>()
    2.   at org.jfree.date.SerialDate.createInstance()
    3.   at org.jfree.data.time.Day.<init>()