Learn how to create a strategy interacting with a crypto exchange and test it against historical data.
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Code Coverage with SonarQube and JaCoCo
A guide to measuring code coverage using SonarQube and JaCoCo.
Java Weekly, Issue 384
Superior Java records, Kotlin 1.5, code examples in Javadoc, stream collector, Spring Cloud Gateway meets K8S, indexing JSON columns, and COIVD predictions!
Converting a Java Keystore Into PEM Format
Learn how to convert certificates and private keys from a Java KeyStore into PEM format using keytool and openssl.
Split Java String by Newline
Learn different ways to split a Java String by newline characters
Guide to Setting Up Apache Kafka Using Docker
Learn how to create single-node and multi-node setups of Apache Kafka in Docker
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Clearing the Maven Cache
In this short tutorial, we’ll explore ways to clear our local Maven cache.
How Many Threads Can a Java VM Support?
A quick and practical overview of how many threads can JVM create.
Guide to Purging an Apache Kafka Topic
Explore a few strategies to purge data from an Apache Kafka topic
A Quick Intro to the Kubernetes Java Client
Discover the Kubernetes API for Java.
The java.security.egd JVM Option
The java.security.egd JVM startup property affects how the SecureRandom class initializes. Let’s explore how changing its value impacts our code.
How To Configure Java Heap Size Inside a Docker Container
To run Java in a docker container we may need to set the correct memory allocation settings, or use a JVM which is aware that it is running in a container. We discover how to optimise a docker build for our Java application’s memory.
Configuring Message Retention Period in Apache Kafka
Learn how to configure time-based message retention properties for Kafka topics
Configure the Heap Size When Starting a Spring Boot Application
Learn how to override the Java heap settings for three common ways of running Spring Boot applications.
Distributed Performance Testing with Gatling
A quick and practical introduction to distributed performance testing with Gatling.
Is Java a Compiled or Interpreted Language?
Java provides the speed of a compiled language with the portability of an interpreted language. We investigate how the JVM and JIT compiler work, and how to classify Java as a language.
Introduction to JVM Intrinsics
A quick and practical overview of intrinsics and how they work in Java.
How to Analyze Java Thread Dumps
Learn how to analyze thread dumps to efficiently diagnose performance issues. Also, we’ll learn to detect bottlenecks or even simple bugs.