Java's synchronized explained
There's a ton of documentation and specifications describing the internal workings of the JVM. However, going through all of that to simply gain some understanding might be a bit too much. I've read those specs and looked inside, so here's a simple little explanation of how `synchronized` works in Java...
Postgres: notes from day-to-day engineering
As a software engineer, I learn something new every day simply by doing my job. This post contains three small tips that I thought were worth noting down and might be useful for someone, or even for my future self...
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 +...