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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 be more exact about lower level bindings, some native code and how to perform some small ...
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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 of interest to others facing the same choices. Off heap memory is nothing ...
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JGit Authentication Explained

Authentication in JGit is mostly on par with native Git. Commonly used protocols like SSH and HTTP(S) and their authentication methods are supported. This article summarizes how to ...
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Self-healing JVM

This post is an example about an application where the first solution to each and every IT problem – “have you tried turning it off and on again” – can backfire and do more ...
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Java Servlet Tutorial – The ULTIMATE Guide

Java Servlets is a Java based web technology. Java Servlet technology provides Web developers with a simple, consistent mechanism for extending the functionality of a Web server and ...
java-interview-questions-answers

Beyond the JAX-RS spec: Apache CXF search extension

In today’s post we are going to look beyond the JAX-RS 2.0 specification and explore the useful extensions which Apache CXF, one of the popular JAX-RS 2.0 implementations, is ...
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Manipulating JARs, WARs, and EARs on the Command Line

Although Java IDEs and numerous graphical tools make it easier than ever to view and manipulate the contents of Java archive (JAR, WAR, and EAR) files, there are times when I prefer ...
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Building dynamic responsive multi-level menus with plain HTML and OmniFaces

Recently, I had to create a responsive multi-level menu with JSF 2.2. Requirements: the menu should:                  be created with ...
java-interview-questions-answers

What’s up with Java EE 8 ?

Work on Java EE 8 is well on it’s way. Time to catch up! Dive in without further ado… Don’t forget Java EE 7 just yet….. Revolved around three important themesHTML 5 alignment ...
spring-interview-questions-answers

Spring Data JPA Tutorial: Getting the Required Dependencies

Before we can create an application that uses Spring Data JPA, we need to get the required dependencies. This blog post identifies the required components and describes how we can get ...
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