Java Source Compilation

Hello I am trying to write a comparator class so that I can do some record sorting. In order to do this I was trying to the complie 2 java files I wrote. Unfortunately when I try this the com.wm.data.* packages do not import… I get the following errors:
D:\webMethods601\IntegrationServer\packages\lgeFF3\code\source\lgeFF3>javac comm
onArray.java
commonArray.java:2: package com.wm.data does not exist
import com.wm.data.*;
^
commonArray.java:16: cannot resolve symbol
symbol : class IData
location: class lgeFF3.commonArray
public static void sort(IData recordArray){
^
commonArray.java:17: cannot resolve symbol
symbol : class commonComparator
location: class lgeFF3.commonArray
commonComparator c = new commonComparator();
^
commonArray.java:17: cannot resolve symbol
symbol : class commonComparator
location: class lgeFF3.commonArray
commonComparator c = new commonComparator();
^
4 errors

Any ideas as to what I am doing wrong.
Thanks in advance
Regards
JN

Hello,
I guess you are using an external IDE. I think you need the client.jar and server.jar files in your classpath from the Integration Server lib folder.