Worked on enhancing the robustness of WebDAV operations within the apache/tomcat repository, focusing on backend development using Java. Addressed a reliability issue in the WebdavServlet.doDelete method by introducing an early exit after a precondition failure, ensuring that unnecessary processing is avoided when conditions are not met. This targeted bug fix improved error handling and reduced the risk of edge-case failures during file deletion workflows. The change contributed to safer and more predictable deployments by strengthening the stability of file-handling features. The work demonstrated attention to defensive programming practices and a commitment to maintaining reliability in Java-based backend systems.