DB Authentication Not Working for JDBC Request

I am using soapUI 4.0.0. I am trying to connect to an Oracle database. I am trying to use a connection string of this format: jdbc:oracle:thin:username/password@//hostname:port Number:databaseName. I can apparently "hit" the database it just won't authenticate my username/password, which is the same as what I use to log into the same database using SQLDeveloper. Any idea what is not right with this?