This week's book giveaway is in the OCP forum. We're giving away four copies of OCP Java SE 8 Programmer II Exam Study Guide and have Kathy Sierra, Bert Bates, & Elizabeth Robson on-line! See this thread for details.
Tomcat translates your JSP into a servlet class in the package "org.apache.jsp". Other containers probably do something similar. Since your servlet is in a package, its code cannot access any packageless class. This is a change to Java, as of 1.4.