[Red5] asc to red5 question

[paranoio]

Success !!     i finished converting an ASC file to red5 :)
the code went from 108 lines of code to 205 in java but its a lot more 
robust and now i have autocompletion .
just an amazing work from red5 developers !!

I found all the equivalent methods in red5 so i had no problems 
converting  the file ,
I just have one question,  in the ASC i had a method wich calls 
sharedObject.send with 2 parameters , one string and one number.
the equivalent in red5 is ISharedObject.sendMessage and to send the 
parameters has to be using  java.util.List
and using java.util.ArrayList its not posible to send 2 datatypes,
so is there a special class in red5 that can be used for this case ?
a class wich can be holded in a List identifier and able to contain more 
than one datatype?