Googling "Could not initialize class javax.crypto.SunJCE_b" returns many results, with different suggestions for how to fix the problem. I recommend that you try some of the suggestions.
Thank you for your suggestion, Tom.
I had the, Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 7.
So, reverted back to the JCE that came default with installation. Fixed this issue.
> jdrv <- JDBC(driverClass="com.teradata.jdbc.TeraDriver", classPath="~/mydrivers/td/terajdbc4.jar:~/mydriver
> conn <- dbConnect(jdrv,"jdbc:teradata://TDServer/ TMODE=ANSI,CHARSET=UTF8,uid=tduser,pwd=passwd")
That JDBC URL is not correct.
Beginning with Teradata JDBC Driver version 14.00.00.13, the USER and PASSWORD URL parameters are available, but there are no "uid" or "pwd" URL parameters.