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Monitor full page, non AJAX, requests to be notified

Recently, working on new charts and chart “exporting service” in JSF, I’ve faced a quite common problem. When you execute a long-running task (action), you would like ...
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Getting started with the Neo4j Java Rest Binding (Heroku deployment)

Believe it or not, the last couple of days were my first attempt at using Neo4j’s Java Rest Binding. My earlier application on Heroku, Flavorwocky, used the Grails Neo4j plugin and ...
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5 Coding Hacks to Reduce GC Overhead

In this post we’ll look at five ways in which we can use efficient coding to help our garbage collector spend less CPU time allocating and freeing memory, and reduce GC overhead. ...
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C++ like Java for low latency

Overview Previously I wrote an article on C like Java.  This is term I had come across before. However, on reflection I thought C++ like Java is a better term as you still use OOP ...
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Creating External DSLs using ANTLR and Java

In my previous post quite sometime back I had written about Internal DSLs using Java. In the book Domain Specific Languages by Martin Fowler, he discusses about another type of DSL ...
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Getting Started With Spring’s MVC Test Framework – Part 2

The first blog in this mini-series introduced the Spring MVC Test Framework and demonstrated its use in unit testing Spring MVC Controller classes as controllers rather then as POJOs. ...
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JPA 2 | Fetch Joins and whether we should use them

Introduction Recently I have been working with FETCH JOINS in JPA 2 to fetch the data eagerly from the Database and I learned quite a lot on why we should avoid using Fetch Joins in ...
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Java Garbage Collection Distilled

Serial, Parallel, Concurrent, CMS, G1, Young Gen, New Gen, Old Gen, Perm Gen, Eden, Tenured, Survivor Spaces, Safepoints, and the hundreds of JVM startup flags. Does this all baffle ...
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Spring @Bean and PropertyPlaceHolderConfigurer

I was recently stumped by what I thought was going to be a fairly straightforward implementation – Consider the following Spring Java based bean definition file ( @Configuration):                 package ...
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Java’s Reflection API

If you have ever asked yourself questions like these: – “How do I invoke a method, having only it’s name in a String?” - “How do I list all the attributes in a class dynamically?” - ...
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