Fix issue found by sonar: https://sonar.onap.org/project/issues?fileUuids=AWVec_HZxOv3LmQdCK3U&id=org.openecomp.sdc%3Asdc-main%3Amaster&open=AWbRW6TN7_-9RwnVIBE3&resolved=false
SDC-2654 Fix Sonar issue sdc-common - ConfigurationUtils.java
SDC-2669 Fix sonar issues for sdc-common - Configuration.java