Returns an unmodifiable list containing six elements. See Unmodifiable Lists for details.

Parameters:

<E>		the List's element type
e1		the first element
e2		the second element
e3		the third element
e4		the fourth element
e5		the fifth element
e6		the sixth element

Returns:  a List containing the specified elements

Exceptions:

NullPointerException

if an element is null

Since:  9