java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at com.teradata.tdgss.jtdgss.TdgssConfigApi.GetMechanisms(Unknown Source)
at com.teradata.tdgss.jtdgss.TdgssManager.(Unknown Source)
at com.teradata.tdgss.jtdgss.TdgssManager.getInstance(Unknown Source)
at com.teradata.jdbc.jdbc.GenericTeraEncrypt.getGSSM(GenericTeraEncrypt.java:623)
at com.teradata.jdbc.jdbc.GenericTeraEncrypt.getConfig(GenericTeraEncrypt.java:641)
at com.teradata.jdbc.jdbc.GenericTeraEncrypt.getUserNameForOid(GenericTeraEncrypt.java:734)
at com.teradata.jdbc.AuthMechanism.(AuthMechanism.java:50)
at com.teradata.jdbc.jdbc.GenericLogonController.run(GenericLogonController.java:121)
at com.teradata.jdbc.jdbc_4.TDSession.(TDSession.java:209)
at com.teradata.jdbc.jdk6.JDK6_SQL_Connection.(JDK6_SQL_Connection.java:30)
at com.teradata.jdbc.jdk6.JDK6ConnectionFactory.constructConnection(JDK6ConnectionFactory.java:22)
at com.teradata.jdbc.jdbc.ConnectionFactory.createConnection(ConnectionFactory.java:130)
at com.teradata.jdbc.jdbc.ConnectionFactory.createConnection(ConnectionFactory.java:120)
at com.teradata.jdbc.TeraDriver.doConnect(TeraDriver.java:220)
at com.teradata.jdbc.TeraDriver.connect(TeraDriver.java:153)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at com.onseven.dbvis.g.B.D.ā(Z:1413)
at com.onseven.dbvis.g.B.F$A.call(Z:1474)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

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