I believe this is part of WebSphere Process Server. These jar files are located in the <INSTALL_ROOT>/plugins
directory
BOFactory
is located incom.ibm.soacore.runtime_6.1.0.jar
ServiceManager
is located incom.ibm.soacore.sca_6.1.0.jar
You need to have the server or the client jars installed on the machine you are developing on.