Learn how the Java HttpClient reuses connections from its internal connection pool.

Safe native memory management with Java, scaling DAO layer in Spring apps, releasing to maven central, REST glory, and window functions in MySQL!

Fast Java 21, compact strings, static mocks, native GC for Quarkus, async stack trace, and non-vulnerable microservices!

Learn two ways to check if a given object is an array.

A quick and practical comparison between Class.forName() and Class.forName().newInstance()

Learn about Quarkus Funqy as a great addition that helps to run Java functions on the Serverless infrastructure.

Learn when to use a List and when to use a Stream with Sping Data.

Learn several ways to determine if an object or a class implements a specific interface.

Learn a few different ways to check if a given Integer instance's value is null or zero.

Learn a few ways to multiply BigDecimal by an Integer.

Learn about structured concurrency capabilities in Java 19.

Learn how to eliminate manual data setup in tests by auto-generating the data using Instancio.

Learn about the different memory types in the Java Virtual Machine (JVM) and understand the reasons for some common memory-related errors.

Learn about the Java list interface, including core functions and concrete implementations.

Learn different ways for using a Stream as an Iterable.

Learn the alternatives when we need to initialize an ArrayList with null or 0 values.

Learn different techniques to extract the first embedded integer from a String.

Learn how to compare a String to an enum constant through examples.

A quick and practical guide to callback functions in Java.

Learn about Stream.of() and IntStream.range() and learn about certain operations that may turn a Stream from "lazy" to "eager".

Introduction In a previous article, I talked about how serialization and file I/O performance was improved in JDK 21 thanks to the use