Fetching data is not just about reducing the number of SQL queries. Sometimes, one query is worse than five. Today, while following a Virtual JUG session with Vlad Mihalcea, we discussed a classic trap: At first, the temptation is obvious: “Let’s fetch everything with one big JOIN.” But...

• The Vector API is Java’s portable SIMD story for data-heavy workloads. • You write vector operations in Java and let the JVM map them to the best hardware instructions available. • It is still incubating, so it is best suited to performance-focused code paths and libraries. #java ...

• LazyConstant gives Java a standard way to delay initialization while keeping immutable semantics. • It helps when object creation is expensive but the value should still behave like a constant after first use. • This is a cleaner alternative to ad hoc lazy holder code. #java #java26 ...