Fix Major sonar issues in aai/traversal module
https://sonar.onap.org/component_issues?id=org.onap.aai.traversal%3Atraversal#resolved=false|severities=BLOCKER
Fixed NullPointerException might be thrown as 'uri' is nullable here
Issue-Id:AAI-212
Change-Id: Ie4f47a47c3d54a4356aad787dcc10acbfcdd87ea
Signed-off-by: shashikanth.vh <shashikanth.vh@huawei.com>
                        ErrorLogHelper.logException(e1);
                }
                
-               if (uri.contains(EchoResponse.echoPath)) {
+               if ((uri != null) && (uri.contains(EchoResponse.echoPath))) {
                        // if it's a health check, we don't want to log ANYTHING if it's a lightweight one
                        if (query == null) {
                                if (message.getExchange().containsKey("AAI_LOGGING_HBASE_ENABLED")) {
                                go = false;
                        }
                }
-               else if (uri.contains("/translog/")) {
+               else if ((uri != null) && (uri.contains("/translog/"))) {
                        // if it's a translog query, we don't want to log the responses
                        if (message.getExchange().containsKey("AAI_LOGGING_HBASE_LOGRESPONSE")) {
                                message.getExchange().remove("AAI_LOGGING_HBASE_LOGRESPONSE");