Error when adding

I am trying to add the name Ann to my list called theList like this.theList.add("Ann");This is the warning I am getting warning: [unchecked] unchecked call to addLast(E) as a member of the raw type java.util.LinkedListWhat would cause such an error?
[284 byte] By [rplaisancea] at [2007-11-26 18:03:14]
# 1
generics.%
duffymoa at 2007-7-9 5:33:21 > top of Java-index,Java Essentials,New To Java...
# 2
"warning", not an error.%
duffymoa at 2007-7-9 5:33:21 > top of Java-index,Java Essentials,New To Java...
# 3
http://java.sun.com/j2se/1.5.0/docs/guide/language/generics.html
jverda at 2007-7-9 5:33:21 > top of Java-index,Java Essentials,New To Java...