JDBC Fails with Invalid connection string format When TNS Alias Contains Dots

(Doc ID 1915177.1)

Last updated on MARCH 08, 2017

Applies to:

JDBC - Version and later
Information in this document applies to any platform.


JDBC/thin version using the "oracle.net.tns_admin" property to access a tns entry that contains dots fails to connect with error:
java.sql.SQLRecoverableException: IO Error: Invalid connection string format, a valid format is: "host:port:sid"

For example:




 The issue does not reproduce with JDBC and lower versions.


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