For ENG-3828, add missing null check
For ENG-3828, add missing null check

wolffcm/voltdb,migue/voltdb,wolffcm/voltdb,ingted/voltdb,creative-quant/voltdb,simonzhangsm/voltdb,ingted/voltdb,paulmartel/voltdb,migue/voltdb,zuowang/voltdb,zuowang/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,kobronson/cs-voltdb,deerwalk/voltdb,kobronson/cs-voltdb,kumarrus/voltdb,deerwalk/voltdb,ingted/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,kumarrus/voltdb,wolffcm/voltdb,kobronson/cs-voltdb,flybird119/voltdb,migue/voltdb,VoltDB/voltdb,creative-quant/voltdb,deerwalk/voltdb,zuowang/voltdb,kumarrus/voltdb,zuowang/voltdb,migue/voltdb,ingted/voltdb,zuowang/voltdb,creative-quant/voltdb,simonzhangsm/voltdb,flybird119/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,creative-quant/voltdb,paulmartel/voltdb,deerwalk/voltdb,VoltDB/voltdb,VoltDB/voltdb,VoltDB/voltdb,kobronson/cs-voltdb,deerwalk/voltdb,creative-quant/voltdb,deerwalk/voltdb,ingted/voltdb,paulmartel/voltdb,deerwalk/voltdb,wolffcm/voltdb,VoltDB/voltdb,kobronson/cs-voltdb,wolffcm/voltdb,creative-quant/voltdb,kobronson/cs-voltdb,paulmartel/voltdb,simonzhangsm/voltdb,creative-quant/voltdb,flybird119/voltdb,wolffcm/voltdb,flybird119/voltdb,zuowang/voltdb,kumarrus/voltdb,kumarrus/voltdb,kobronson/cs-voltdb,wolffcm/voltdb,migue/voltdb,migue/voltdb,flybird119/voltdb,paulmartel/voltdb,ingted/voltdb,flybird119/voltdb,creative-quant/voltdb,zuowang/voltdb,ingted/voltdb,ingted/voltdb,zuowang/voltdb,flybird119/voltdb,migue/voltdb,migue/voltdb,VoltDB/voltdb,paulmartel/voltdb,deerwalk/voltdb,kobronson/cs-voltdb,wolffcm/voltdb,kumarrus/voltdb,flybird119/voltdb,paulmartel/voltdb