I am trying to connect my grails project to Oracle databse(Oracle 12c) in windows(8) system. However, whenever i run my application i get following exception :
Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (ORA-28040: No matching authentication protocol
)
Caused by: java.sql.SQLException: ORA-28040: No matching authentication protocol
According to internet suggestion i also tried editing my *.ora file but it is not working.
I added following snippet in sqlnet.ora file :
SQLNET.ALLOWED_LOGON_VERSION=10 SQLNET.ALLOWED_LOGON_VERSION_CLIENT=10 SQLNET.ALLOWED_LOGON_VERSION_SERVER=10
Here i tried assigning (10,11,12) but neither of them is working.
Can anyone please help me with this ?
I deleted the ojdbc14.jar file and used ojdbc6.jar instead and it worked for me
EDIT
From @JamesTobin : changing to ojdbc6.jar or ojdbc7.jar still failed because I had been constantly setting: oracle.jdbc.thinLogonCapability"="o3" which you no longer have to do against oracle 12c
Here is some text I found at experts-exchange:
Bug 14575666
In 12.1, the default value for the SQLNET.ALLOWED_LOGON_VERSION parameter has been updated to 11. This means that database clients using pre-11g JDBC thin drivers cannot authenticate to 12.1 database servers unless theSQLNET.ALLOWED_LOGON_VERSION parameter is set to the old default of 8.
This will cause a 10.2.0.5 Oracle RAC database creation using DBCA to fail with the ORA-28040: No matching authentication protocol error in 12.1 Oracle ASM and Oracle Grid Infrastructure environments.
Workaround: Set SQLNET.ALLOWED_LOGON_VERSION=8 in the oracle/network/admin/sqlnet.ora file.
Except for adding the following to sqlnet.ora
SQLNET.ALLOWED_LOGON_VERSION_CLIENT = 8 SQLNET.ALLOWED_LOGON_VERSION_SERVER = 8
I also added the following to both the Client and Server, which resolved my issue
SQLNET.AUTHENTICATION_SERVICES = (NONE)
Also see post ORA-28040: No matching authentication protocol
Adding
SQLNET.ALLOWED_LOGON_VERSION_SERVER = 8
is the perfect solution sql.ora directory ..\product\12.1.0\dbhome_1\NETWORK\ADMIN
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