JVM
-
Core Java
How JVMTI tagging can affect GC pauses
This post is analyzing why and how Plumbr Agents extended the length of GC pauses on certain occasions. Troubleshooting the underlying problem…
Read More » -
Core Java
Java Flight Recorder (JFR)
JFR is a Java profiler which will allow you to investigate the runtime characteristics of your code. Typically you will…
Read More » -
Core Java
JVM is down with “OutOfMemory” error – what should I do?
Amazing as it may seem, but this particular cry “From the Depths” is frequently displayed among the results of search…
Read More » -
Enterprise Java
Starting multiple JBoss A-MQ JVMs on the same machine
So I haven’t been blogging as much recently — just been really busy. But my New Year’s resolution is to…
Read More » -
Core Java
How is Java / JVM built ? Adopt OpenJDK is your answer!
Introduction & history As some of you may already know, starting with Java 7, OpenJDK is the Reference Implementation (RI)…
Read More » -
Core Java
Testing JVM server-side JavaScript with Jasmine, Spock and Nashorn
JavaScript usage is not limited to client-side code in browser or NodeJS powered server-side code. Many JVM based projects are…
Read More » -
Core Java
cjmx: A command-line version of JConsole
JConsole is a nice tool when it comes to monitoring a running Java application. But when it is not possible…
Read More » -
Core Java
Own your heap: Iterate class instances with JVMTI
Today I want to talk about a different Java that most of us don’t see and use every day, to…
Read More » -
Core Java
On heap vs off heap memory usage
Overview I was recently asked about the benefits and wisdom of using off heap memory in Java. The answers may be…
Read More »
