"Andreas is a fantastic teacher! In addition to the fact that I experienced him as competent with a solid knowledge of his subjects, he really excels as an educator. Regardless of who you are or what level of knowledge you are at, Andreas always responds to one's questions with commitment, curiosity and a positive attitude that is contagious. Above all, I appreciated that he both gave me space to explore solutions myself and think creatively, while he was always there to contribute his support. I highly recommend Andreas!"
Modern Java Fast-Track
Upgrade your codebase by mastering Data-Oriented Programming, Java 21, and Virtual Threads.
You will learn to separate data from logic (DOP) and gain the tools to build type-safe, high-performance, and asynchronous applications with modern Java.
For experienced Java developers and architects wanting to eliminate technical debt and build massively scalable systems with modern Java.
Professional Java experience is required; if the language is new to you, we recommend 'Java Jumpstart: Essentials'.
Curriculum & Highlights
Challenges we address
"How do you eliminate boilerplate and create immutable data using Records and Text Blocks?"
"How do you separate data from logic (DOP) using Sealed Classes and Pattern Matching?"
"How do you scale to millions of asynchronous tasks using Virtual Threads instead of reactive frameworks?"
With the architecture modernized, 'Functional Java: Lambda & Streams' is recommended to throw out old loops and radically simplify data processing. →
Standard price per group (up to 12 participants) for remote delivery. Additional costs apply for onsite delivery.
Your Instructor
Andreas Olsson
Expertise through Active Learning
Java and the Spring Framework have been my core focus for over 20 years. Today, my mission is primarily to help organizations step into the future by integrating intelligent agents and AI-driven features into modern Java systems.
Actlea stands for Active Learning – the philosophy that programming is best learned by writing code, not by watching slides. My workshops focus on intensive, hands-on exercises designed to solve real-world problems.
I deliver proven training concepts globally across all timezones. While I specialize in remote delivery, I love to travel for onsite workshops. My modules are ready for immediate impact but can be tailored to your team's specific requirements.
Enterprise teams trained by Actlea
What past participants say
Read about the pedagogical approach, the hands-on labs, and the impact on daily work.
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Ready to elevate your
team's expertise?
Book a single workshop, combine modules into a package, or plan a full-scale bootcamp. My training is built on proven standard modules, ready to be delivered immediately to your team, regardless of your location.
- ✔Expert standard modules for senior teams
- ✔Global delivery across all time zones
- ✔Fixed group rate for up to 12 participants (remote)
- ✔Flexible delivery: Remote or On-site
Get in touch for a quote or to discuss availability.