chore: remove System.out and printStackTrace to align with Sonar rules S106 and S1148#4988

daniel-kmiecik merged 5 commits intoswagger-api:masterswagger-api/swagger-core:masterfrom

kuntal1461:chore/sonar-cleanup-no-system-outkuntal1461/swagger-core:chore/sonar-cleanup-no-system-outCopy head branch name to clipboard