Main points: DataWeave 2.0 provides mapping capabilitiesJava and DataWeave can achieve the same mappingsDataWeave mapping operator is less verbose than

Previously we created successfully a Zookeeper ensemble, now it’s time to add some Kafka brokers that will connect to the ensemble and we shall execute

This post shows how to test for expected exceptions using JUnit 5. If you're still on JUnit 4, please check out my previous post. Let's start with the

A quick and practical guide to applying the Locality-Sensitive Hashing algorithm in Java using the java-lsh library.

Use CipherInputStream and CipherOutputStream classes to encrypt and decrypt files in Java.

A quick and practical overview of overflow and underflow in Java.

Learn some tips on common aspects of the OCP Certification exam.

An introduction to the Trie data structure in Java.

Learn about the basic concepts of a Reader and how FileReader makes it simple to do read operations on text files though some examples.

Calculate the Size of a Directory with Java 6, 7 and 8 as well as Apache Commons IO and Guava.

A tutorial showing how to use the subversion Revision number in a Gradle build.

Learn the difference between the Final, Finally and Finalize keywords in Java

See examples that illustrate the main causes of the "illegal start of expression" error and how to fix it

Say hello to Java 16: one small step towards value types and a more efficient Metaspace. Also, buildpacks with layered Jars, and becoming an effective team lead!

A comprehensive introduction to light-weight concurrency on JVM.

Explore the newly introduced Logging API in Java 9 along with examples that cover the most common cases.

Learn how Activiti's two apps, activiti-app and activiti-rest, can help you manage your processes more easily

Have a look at how to use the generated Lombok Builder with a custom setter.

A quick article with many examples of joining and splitting arrays and collections using Java Stream API.