Mastering Java 17

Language enhancements and other features of Java 17

Oracle produces a new "feature release" of Java every six month. Teams that do not move forward with this rapid pace, run the risk of having to work with outdated technology, and are often forced to code around shortcomings that have already been solved in more modern Java.

In this course, we teach the most important new features of Java 12, 13, 14, 15, 16, and 17. It is ideal for programmers who are currently programming Java 11, and who need to upgrade their systems, or even programmers that are using Java 17, but feel that they have not understood all the intricacies of the new versions.

We begin with language improvements, exploring how NullPointerExceptions now present us with helpful debugging information, then looking at the new features of switch expressions, text blocks, pattern matching for instanceof, records, and finally, sealed classes.

Next we investigate the performance improvements in Java 17, looking at why biased locking was disabled by default, what a value-based class is, and the two new garbage collectors: ZGC and Shenandoah.

In our last section, we look at the tools and API improvements in Java 17, such as the enhanced pseudo-random number generators, the context specific deserialization filters, and how the JVM is becoming more secure through stronger encapsulation and by deprecating the insecure security manager.

During the training, we will always get a chance to try out what we have learned in carefully thought out exercises. This will help us understand and quickly internalize what we have just learned.

Your Instructor

Dr Heinz M. Kabutz
Dr Heinz M. Kabutz

Heinz Kabutz is the author of The Java Specialists’ Newsletter, a publication enjoyed by tens of thousands of Java experts in over 150 countries. He has been a Java Champion since 2005.

Course Curriculum

  0. Introduction
Available in days
days after you enroll

Frequently Asked Questions

How long do I have access to a fully paid course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own. Furthermore, if we move to another platform, we will offer you a free transfer of your account for all the courses that you have purchased.
Can I pay via PayPal?
Yes, you can for outright purchases, but not for recurring payments such as paying by installments.
Can I get back the EU VAT?
Absolutely. First off, be sure to enter the VAT number in the appropriate field during the payment process. Then contact Teachable and ask them to reimburse you the VAT.
May I share my login details with my colleagues?
Unfortunately not. The terms of usage are for a single license. Teachable tracks your progress through the curriculum, so you won't know how much you have watched. We offer discounts on bulk licenses by one company. Please contact us for bulk licensing.
May we use the course for running in-house courses?
You may, as long as each of the students in the class has a valid license for that course. For example, some companies run lunch time Design Patterns study groups using our material. This is an effective way to learn. Please contact us for bulk licensing.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 14 days to tell us what you are unhappy about, and we will give you a full refund and deregister you from the course.
When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish. We do recommend putting time aside and setting goals to complete the course.
Can I watch the course offline during my commute?
Teachable have an iOS app that lets you watch offline. Android is not supported unfortunately.

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