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How JVM handles exceptions



It's interesting to know how the JVM runs bytecode instructions... But do you know what is going on when an exception is thrown? How does JVM handle the delegation of control? What does it look like in the bytecode?

First months at Azul: how is it going?



It's been over three months now since I started working at Azul. Everyone keeps telling me 'you're in the right place', and I can't agree more! I feel like I can use my skills and experience as a backend engineer, and also combine it with the subject of my curiosity and strong interest - JVM internals...

Java Integer Caching: why and how



As Java developers, we know that we shouldn't compare objects using the `==` operator because this way we compare the references and not the actual values. That would also apply to Integer objects, however...

I won’t let Java confuse you #5: let's talk lambdas



Lambdas are interesting structures. What are they exactly? And why can't we use non-final local variables in lambda bodies?

I won’t let Java confuse you #4: unreachable statements



Do you think Java consistently rejects all unreachable code? Well...

Welcome back to the Java-unconfusing series! Usually here we take a look at the pieces of code which may look really innocent, but not work as we expect. Or not compile at all. It's good to dive into the reasons why it is a certain way, so we can learn more about Java ideology and design decisions. Let's get unconfused together!

I won’t let Java confuse you #3: widening



Welcome to the fourth episode of our Java-unconfusing series, where we look at some basic concepts in Java (in fact, it applies to many other languages too) that result in confusing outcomes in certain cases...

I won’t let Java confuse you #2: expressions



Welcome to the third episode of the Java-unconfusing series, where we talk about the things that look innocent, while the results seem confusing. Today I'm going to show you a simple numeric expression...

I won’t let Java confuse you #1: String concatenation operator +



Welcome to the second episode of this little Java-unconfusing series. Today I would like to talk briefly about String concatenation operator +...

I won’t let Java confuse you #0: increment



Sometimes the code that seems really clear can turn out to be quite deceiving, even in some really basic concepts. In these situations, it’s good to question whether that code doesn’t smell...

The Hidden Dynamic Life of Java



This article is an (elaborate) transcript of my talk, ‘The Hidden Dynamic Life of Java’, presented on J-Fall 2023...