A very basic question

Hi

I am trying to use some of the sample extended classes in my project but on trying to compile the project it fails since some of the class is trying to refer the com.sap.mw.jco.JCO$Table, now i am failing to find the jar file that would contain this type.

Can anyone answer to this very basic ques, since there are so many jar files i am unable to find while one needs to be referred to now.

thanks