Dr. Heinz M. Kabutz is a Java Champion and the creator of The Java Specialists’ Newsletter (www.javaspecialists.eu), read by thousands of senior developers worldwide. With decades of experience in performance engineering, concurrency, and modern Java language design, he has trained programmers in leading companies across the globe. Heinz is known for his deep technical insight, clear teaching style, and hands-on approach to modernizing real-world systems. He is also the organizer of the JCrete® unconference and author of several advanced Java courses used internationally.