We have migrated our Oracle database to 12c from 11g. We have a legacy application running in Java 1.5 and using ojdbc14.jar.
Our application is not able to create connection to database error saying :
java.sql.SQLException: ORA-28040: No matching authentication protocol
I reffered to answer ORA-28040: No matching authentication protocol exception, and tried to upgrade my ojdbc14.jar to ojdbc6.jar.
I now have a different error message saying :
error: OracleCallableStatement is not public in oracle.jdbc.driver; cannot be accessed from outside package
import oracle.jdbc.driver.OracleCallableStatement;
^
error: OracleTypes is not public in oracle.jdbc.driver; cannot be accessed from outside package
cstmt.registerOutParameter(3,oracle.jdbc.driver.OracleTypes.CURSOR);
^
Ant build file :
<javac srcdir="${src}" destdir="${classes}" source="1.5" target="1.5">
<classpath refid="cpath" />
</javac>
Not sure what exactly we should do to get the application working.
I had the same error with 2 different applications recently:
The second solution mentioned in the same post you referred to - worked well for us.
Workaround: Set SQLNET.ALLOWED_LOGON_VERSION=8 in the oracle/network/admin/sqlnet.ora file.
We worked with our DBAs to set the above option on the sqlnet.ora on the database server. This resolved our issue. I hope it helps someone.