Sonar blocker issue resolution
Sonar issue resolutions for ConfigArtifactProcessor.java
Resolve this blocker issue:
https://sonar.onap.org/issues/search#issues=AWDHkCDV-08if2a6w3sT
And other sonar findings:
https://sonar.onap.org/issues/search#issues=AWDHkCDV-08if2a6w3sU
https://sonar.onap.org/issues/search#issues=AWDHkCDU-08if2a6w3sR
https://sonar.onap.org/issues/search#issues=AWDHkCDV-08if2a6w3sS
Change-Id: I2c4f2bb38a5d1fc07fd13c5220eac9fa16afe04a
Issue-ID: APPC-386
Signed-off-by: Skip Wonnell <skip@att.com>