JDBC driver issues

We found that the following error messages were all fixed by the latest Teradata JDBC driver version (tested with Teradata JDBC Driver 13.0):

GSSException: Failure unspecified at GSS-API level (Mechanism level: LibFile parameter null)
java.lang.NullPointerException
at com.teradata.tdgss.jtdgss.TdgssConfigApi.GetMechanisms(DashoA1*..)

Note: The tdgssjava.jar file is no longer required by the Teradata JDBC Driver12.0 and later. The classes formerly in tdgssjava.jar now reside in terajdbc4.jar. This reduces the number of jar files from three to two, and simplifies deployment and maintenance. After upgrading to Teradata JDBC Driver 12.0.0.104 or later, you should remove tdgssjava.jar from your classpath.  Further information can be found in the Teradata JDBC FAQ.