As a Java developer, you understand the importance of writing code that is functional, scalable, and maintainable. But how about secure code? Even the most seasoned developer can make common security mistakes that leave your code vulnerable to attack. In this session, we'll explore the most common and sometimes unknown security pitfalls made by Java developers and provide practical tips for avoiding them. We'll cover everything from input validation errors to injection to file overwrites and arbitrary code execution. We'll show real-world examples of insecure code and demonstrate how attackers exploit these vulnerabilities before showing you how to fix these code constructions. By understanding how these mistakes get exploited, you'll be better equipped to write secure, bulletproof code that can withstand attacks. Whether you're a junior developer just starting out or a seasoned pro looking to brush up on your skills, this session is a must-attend for anyone concerned with the security of their Java applications. Let’s start writing secure Java code and learn how to avoid security mistakes.