public LocalDate plusYears (long yearsToAdd)

Returns a copy of this LocalDate with the specified number of years added.

This method adds the specified amount to the years field in three steps:

1. Add the input years to the year field
2. Check if the resulting date would be invalid
3. Adjust the day-of-month to the last valid day if necessary

For example, 2008-02-29 (leap year) plus one year would result in the invalid date 2009-02-29 (standard year). Instead of returning an invalid result, the last valid day of the month, 2009-02-28, is selected instead.

This instance is immutable and unaffected by this method call.

Parameters:

yearsToAdd

the years to add, may be negative

Returns:  a LocalDate based on this date with the years added, not null

Exceptions:

DateTimeException

if the result exceeds the supported date range