getting Io exception: Invalid number format for port number

i have simple job with couple of transformations .the transformations use a shared connection.in linux i have set kettle_home to a directory having kettle.properties and shared.xml.properties file is having oracle db connection string properties and shared.xml is having a connection using these variables.Kitchen.sh is modified to set kettle_home to the .kettle directory.after trying to run a job getting the error



2015/07/02 12:08:42 - Table R14_R17_MIG_LOGS exists.0 -
2015/07/02 12:08:42 - Table R14_R17_MIG_LOGS exists.0 - Error connecting to database: (using class oracle.jdbc.driver.OracleDriver)
2015/07/02 12:08:42 - Table R14_R17_MIG_LOGS exists.0 - Io exception: Invalid number format for port number


not sure if the kettle.properties is being picked up properly and replace the variables in shared.xml properly.