Oracle XE using Service Name

[m4cn]

Hi,

I have a problem with configuring oracle XE to use a Service Name instead of SID in the connection uri. Generally I want to use the following jdbc uri : 'jdbcracle:thin:@mydomain:1521/ServiceName' but when I tried I got error :

ORA-12514, TNS:listener does not currently know of service requested in connect descriptor

My tnsnames.ora :

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = mwachala)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE.marcin.com)
    )
  )

EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

my listener :

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /usr/lib/oracle/xe/app/oracle/product/10.2.0/server)
      (PROGRAM = extproc)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
      (ADDRESS = (PROTOCOL = TCP)(HOST = mwachala)(PORT = 1521))
    )
  )

DEFAULT_SERVICE_LISTENER = (XE)

Can someone help me with setting up this configuration ?