I believe IBM does not support using WAS product jar files in to the 3rd party tool. However if you can give me some more details what exactly this tool is ? and what exactly you are trying to do ?
You should not be copying all the jars file from plugins folder .
Only jar files that you can use on the client side from WAS product is from /WAS_HOME/runtimes folder.
Hope this helps. -VT Note: These opinions are my own .