Unable to connect Oracle database

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I try to create an Oracle connection for one of my BD and i always get that message:
Unable to connect to the database: Io exception: Invalid number format for number

The propose URL strig is : jdbc:oracle:thin:@:/

The URL string i try is : jdbc:oracle:thin:@:/

My tnsname connector is:
OWBTE9.WORLD=
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = tedv1sbd01.te.hydro.qc.ca)(PORT = 1521))
)
(CONNECT_DATA = (SID = owbte9))
)

What's wrong or missing ?