The OpenJDK Off-Heap JEP will be a radical departure from traditional Java priorities, seeking to standardize a facility for efficiently manipulating off-heap memory. This article surveys the impact this JEP will have to empower Java HashMap with new off-heap capabilities. Simply put, this JEP may be just the magic that can “teach” HashMap (that lovable old dog) some new tricks.
MQTT provides the communications link for low-power systems. InfoQ caught up with Andy Piper, lead of the Eclipse Paho project, to find out more about the history of MQTT and why it is being used by internet scale companies such as Facebook.
Using so-called "matcher libraries" to implement custom assertions to make tests more readable and maintainable.
The authors compare different methods to compute the variance of a large data set using an imperative style, The fork/join framework and the new Streams API in Java 8 10
In this article we present some of the most common performance analysis antipatterns in the enterprise platform, expressed in terms of their basic causes along with remediation strategies. 1
ActiveJPA is a Java implementation of Martin Fowler’s Active Record over JPA and provides abstractions to simplify data access. In this article the primary committer illustrates ActiveJPA usage 7
Writing Java software that correctly makes use of concurrency requires careful thought. Static analysis tools can analyze source code or compiled bytecode to discover latent bugs hidden within code. 1
In this article Ping Chen shares her experiences on how to pragmatically maintain a large legacy application. 9
Garbage Collection takes minutes to learn and a lifetime to master. In this article Master trainer/consultant Ben Evans summarizes his recent InfoQ presentation "Visualizing Garbage Collection"
Some users are interacting with databases through complex SQL queries, both in terms of performance as well as expressivity. If SQL and JPA are diverging, where will our data interaction patterns go? 4
Anatomy of a light-weight, lockless, inter-thread communication framework in Java. 17
On certain occasions you will need to build your own parser, eg if there is nothing standard that fits the bill. This article walks through the steps of building a high performance parser 7
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