Sonar Fix: ConfigDAO.java

Fixed sonar issues/code-smells across this file

Issue-ID: AAF-721
Change-Id: I14862446a984d07eadc55f1f1ccf7a6d6b1e2a4c
Signed-off-by: Arundathi Patil <arundpil@in.ibm.com>
1 file changed