What are some common challenges a Java security engineer faces when integrating security measures into existing applications?

A major challenge for Java Security Engineers is implementing robust security features without disrupting existing application functionality or performance. This often requires a thorough understanding of legacy code, careful assessment of current vulnerabilities, and close collaboration with development teams to ensure seamless integration. Additionally, keeping up with rapidly evolving security threats and ensuring compliance with industry standards can add complexity to the role. Effective communication and proactive planning are essential for overcoming these challenges and ensuring secure, stable applications.