Fixed Issues in Spark

This section lists the issues that have been fixed since the previous version.

CDPD-10532: Update log4j to address CVE-2019-17571
Replaced log4j with an internal version to fix CVE-2019-17571.
CDPD-10515: Incorrect version of jackson-mapper-asl
Use an internal version of jackson-mapper-asl to address CVE-2017-7525.
CDPD-7882: If an insert statement specifies partitions both statically and dynamically, there is a potential for data loss
To prevent data loss, this fix throws an exception if partitions are specified both statically and dynamically. You can follow the workarounds provided in the error message.