To avoid any adverse flack, I would like to clear at the outset that I have nothing against Java 8, and I actually love Scala. (more…)

In 64-bit Hotspot, Java objects have an object header of 128 bits: a 64 bit multi-purpose header (‘mark’ or ‘lock’) word and a 64-bit class pointer. With typical average object sizes of 5-6 words, this is quite significant: 2 of those words are al... (more…)

We know that variables are used to store data in a Java program. We also know that each variable can store not more than one data item. So, what do we do if we need to store a large number of data items, say 50. Well, we can use 50 variables, one for each... (more…)

A few weeks ago I faced an interesting problem trying to analyze a memory consumption in my Java application (Spring Boot + Infinispan) running under Docker. The Xmx parameter was set to 256m, but the Docker monitoring tool displayed almost two...

Today, Red Hat and the Quarkus community announced Quarkus 1.0. Quarkus is a Kubernetes-native Java stack that is crafted from best-of-breed Java libraries and standards, and tailored for containers and cloud deployments. (more…)