Tag: Java
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Introduction to ZGC: Scalable and experimental low-latency JVM garbage collector
Posted on February 17, 2019, Level intermediate Resource Length long
Attila Fejér is author of this interesting read about address issue with managing memory for highly available and scalable systems in Java. Java 11 introduced the Z Garbage Collector (ZGC) as an experimental garbage collector (GC) implementation.
Tags jvm programming java
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Comparing JVM performance; Zulu OpenJDK, OpenJDK, Oracle JDK, GraalVM CE
Posted on January 15, 2019, Level intermediate Resource Length long
Comparison article by Maarten Smeets in which he tries to help you to choose the best Java Virtual Machine (JVM) for your project. There are many different choices for a JVM for your Java application.
Tags jvm java performance devops programming
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Simple Kafka producer in Kotlin, tutorial
Posted on December 26, 2018, Level beginner Resource Length medium
The first in series of tutorials by Alexis Seigneurin focused on Kafka. Author focuses on producing, consuming and processing messages or events.
Tags java programming queues devops kotlin
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The Futures in Scala
Posted on December 25, 2018, Level beginner Resource Length medium
Álvaro Navarro wrote this interesting short tutorial on Futures in Scala. In it he explains the nuts and bolts of dealing with Futures in Scala and Akka. Futures allow to perform many operations in parallel in an efficient and non-blocking way, but dealing with multiple operations can be a real headache.
Tags scala programming java functional-programming
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Getting started with Jenkins X
Posted on December 4, 2018, Level beginner Resource Length short
Dave Johnson wrote blog post about starting with Jenkins X. Jenkins X provides continuous integration, automated testing, and continuous delivery to Kubernetes.Jenkins X-managed projects get a complete CI/CD process with a Jenkins pipeline that builds and packages project code for deployment to Kubernetes and access to pipelines for promoting projects to staging and production environments.
Tags containers devops cicd java tdd
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Microservices for Java developers: Implementing microservices (synchronous, asynchronous, reactive, non-blocking)
Posted on November 2, 2018, Level advanced Resource Length short
Andrey Redko published this guide how to implement microservices for Java developers. There is a variety of paradigms you may encounter while implementing the internals of your microservices.
Tags java serverless programming microservices
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JVM Profiler: open source tool for tracing distributed JVM applications at scale
Posted on October 14, 2018, Level advanced Resource Length long
Bo Yang, Nan Zhu, Felix Cheung, Xu Ning from Uber Engineering team published blog post about JVM Profiles. Data is at the heart of strategic decision-making process at Uber. Right sizing the resources allocated to Spark applications and optimizing the operational efficiency of Uber data infrastructure requires fine-grained insights about these systems, namely their resource usage patterns.
Tags programming java distributed miscellaneous monitoring queues performance streaming
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Compiler hinting with Kotlin contracts
Posted on September 14, 2018, Level advanced Resource Length short
Jarno Walgemoed short introduction on some new interesting features in Kotlin 1.3. Kotlin's built-in null-safety makes it easy for us to write code that's less error-prone and less susceptible to the unwanted and unexpected NullpointerException at runtime. Kotlin is introducing Contracts in the upcoming 1.3 release in which we can use contracts to tell the compiler how a function behaves and what results are implied, so we can benefit from improved smart-casts.
Tags java android app-development kotlin
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Understanding Android Gradle build
Posted on August 18, 2018, Level beginner Resource Length medium
Łukasz Wasylkowski article about Android Gradle builds. In his post he'll write, step by step, Gradle configuration files for a single Android project in order to take some of the magic away.
Tags android java app-development cicd
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Stubbing and mocking in Java with the Spock testing framework
Posted on July 20, 2018, Level advanced Resource Length long
Kostis Kapelonis wrote this piece on importance of stubbing and mocking. When it comes to true unit tests, having a mocking framework such as Spock for Java is essential. Using a mocking framework ensures that your unit tests are fast, self-contained and deterministic.
Tags programming java tdd
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Java 9: Step by Step From Zero to Modules (Part 1)
Posted on May 6, 2017, Level intermediate Resource Length short
Tomer Ben David wrote guide which covers the basic building blocks of making modules in Java 9.
Tags programming java