I would support that decision. I have used Oracle servers and tools for approx 8 years. Using JDeveloper 10g you can autogenerate webservice clients from WSDL files and create WSDL files for
java code. Makes it very simple. you can implement a simple web services client within a day and is will be functional and adding value.
I do not work for Oracle or have any benefit in recommending Oracle for any benefit.