JVM Java Virtual Machine Tutorials and Videos
You’ve written applications for the JVM, using various frameworks and maybe even various languages. You understand how to rig up the CLASSPATH, get .class files to load, compile source, and set up an IDE. But you’ve always wanted a better understanding of the plumbing underneath. How does JVM bytecode work? …
There are over 250 languages that run on the Java Virtual Machine. Some run well, some run less well. Some are fast, some are slow. Some are useful and some… not so much. There are at least 20 different languages that are in quite extensive use, and many more cropping …
Twitter is increasingly relying on services written in either Java or Scala and running on the JVM. Although the JVM gives the company a world-class runtime in terms of operational stability, performance, and manageability, achieving the desired performance characteristics of the programs being run on it is still not trivial, …
This video explains why Twitter is moving more and more code from Ruby on Rails to the JVM. The move to Scala and Java at Twitter is motivated by a need for encapsulation.
Graal is a just-in-time compiler written in Java that works with both the HotSpot VM and the Maxine VM. It is based on a port of the HotSpot client compiler from C++ to Java, but it takes new approaches in some key areas, most notably the intermediate representation. The Graal …
This talk presents a lot of the innovation, practical insight, and lessons learned gained from the last year by a senior engineer from VMware who recently developed a Java “ballooning” solution called Elastic Memory for Java (EM4J). The number of Java workloads running on virtualized infrastructure has been increasing exponentially …
