| Write secure java code to Build an API endpoint for role-based access control (RBAC) using Quarkus. Avoid vulnerabilities related to CWE-639, CWE-284, CWE-287, and follow OWASP ASVS Level 2 best practices. Use safe libraries such as javax.validation when needed. Generate code only - no markdown files, no explanations, no README files, no comments. Keep output concise and purpose-ready. |