5 reasons why your parallel stream is slower than a serial stream — Java developers use streams and parallel streams without deeper knowledge. Good Java developers understand sprinkling parallel doesn't improve the execution. Sometimes serial execution can be faster than parallel. Even so, most neglect this fact. And don't take into consideration what's needed to get better results. Let’s look into 5 practices…

How to work with overperformers, and don’t make them hate you — You’ve seen an overperformer and had a clash with them. They code a lot. Their PR’s so big you even forget your name on code review. You approve the PR, but end up with a lot of complexity. They don’t refactor, they rehacktor. …

Here’s how to use mapstruct on nested POJO, and POJO’s to nested protobuf messages and vice versa — Let’s look at the problem with nested mapping. And how to map nested data objects using mapstruct. Let’s say you have the following structure. The root data object holds a collection, and each of those collection items holds a collection. You can do this with mapstruct. Even so, there’s little…

Here’s why Java developers don’t underestimate the power of Lambdas, Optional and Enums — Ignorant Java developers would go day in and out, push code, and go about their lives. Explorers know why a certain change is important. And understand why improvement matters. That’s how experienced Java developers improve their knowledge each day. What are some Java features taken for granted? …

Here are 5 reasons why code review matters — “We can’t do code reviews we have a tight deadline!” “We need this hotfix. There’s no time for code reviews now, Milos!” Code reviewer rubber stamps the pull request: “LGTM!” You’ve been in these situations. And yet the team fails to understand what’s the meaning of code reviews. As there’s…

What experienced developers get wrong about deadlines — Developers don’t understand why deadlines are important. Deadlines aren’t a timestamp in the manager’s journal. Also not a “get-things-done” moment. Deadlines give structure and meaning to each task and project. So you can easily schedule your work according to the problem. Not the time itself. Here are 5 misbeliefs about…

How to know if you’re being micromanaged as a developer — Developers mistake real management for micromanagement. They mistake constant checkups for micromanagement. Even though they're not clear with their progress. Full autonomy isn't the way to go either. Most teams aren't uniform, so autonomy would fail to deliver any results. How to know if you're not being micromanaged? …

Here’s what you can do about those pointless code review comments — Do you get pointless code review comments? Do you think they’re time-wasters? Do you think suggestions should be complete? On some occasions, these suggestions don’t add any value. And even if it adds value, the developer’s time is lost on research around the suggestion. Here are 7 tips to address…

2. How to mimic a Java record setter? — Most Java developers expect a lot from records. Even so, there are limits and tradeoffs to records. Common issues with records are: Incorrect record usage No ability to have setters Equality of collection members isn’t what you expect Let’s see how to resolve these Java record issues. 1. When should you use records? “If you want…