WSSQL-25 Do not deref Null pointer from cache miss
Signed-off-by: rpastrana <rodrigo.pastrana@lexisnexis.com>
WSSQL-25 Code review change (avoid 1 extra map lookup)

Signed-off-by: rpastrana <rodrigo.pastrana@lexisnexis.com>
Merge pull request #19 from rpastrana/WSSQL-25-DonotderefNull

WSSQL-25 Do not deref Null pointer from cache miss