Prior to JDK8 class metadata and constants would live in an area called the “permanent generation”, contiguous with the Java heap. One problem was that If the class metadata size is beyond the allocated bounds your app would run out of memory. With the advent of JDK8 we no longer have PermGen. The space where it was held has now moved to native memory to an area known as the “Metaspace”.
Configuration management is the foundation that makes modern infrastructure possible. Tools that enable configuration management are required in the toolbox of any operations team.
In this important and thorough treatise “Integration Testing from the Trenches” Nicolas Frankel starts from basics and develops integration testing with a casual formalism that's intuitive and fun.
Takipi is makes it just as easy to debug Java and Scala code in production as it is on your desktop 2
NoSQL databases are eliminating the impedance mismatch between developers and traditional data models. This article looks at how MarkLogic provides NoSQL benefits with transactional support. 2
The article introduces NixOS, a Linux distribution, and Nix, a package manager. These provide a declarative approach to configuration management, such as strong reproducibility and atomic upgrades.
In this article Tal Weiss focuses on some lesser known API's in the new Java 8. 6
InfoQ talked to three Reactive experts – Viktor Klang (Akka), Timothy Baldridge (Core.Async), Jafar Husain (RxJava) – to find out how their libraries and frameworks help you write better applications. 1
It's been said that Java 8 is bringing Functional Programming to Java. In this article Ben Evans looks at the how Java 8 provides some key benefits of the functional programming style. 3
With Java 8, annotations can now be written on any use of a type such as in declarations, generics, and casts. This article introduces type annotations and tools to help build better software. 1
Date and time are fundamental concepts to many applications, yet Java SE had no good API to handle them; until now! With Java SE 8, java.time provides a well-structured API to cover date and time.