The 10 Most Common Web App Performance Problems

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Problem 1: Poorly Written Code Poorly written code can lead to a host of web application issues including inefficient algorithms, memory leaks and application deadlocks. Old versions of software, or integrated legacy systems can also drag performance down. Make sure … Continue reading

Authentication against a RESTful Service with Spring Security

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1. Overview This is the eighth of a series of articles about setting up a secure RESTful Web Service using Spring 3.1 and Spring Security 3.1 with Java based configuration. This article will focus on how to authenticate against a secure RESTful … Continue reading

The most common compile time errors in Java

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It’s always a challenge to learn a new programming language, as simple mistakes can generate errors that are both cryptic and baffling for the uninitiated. And if you’re not lucky enough to have an experienced programmer looking over your shoulder … Continue reading

Should Java developers, the coders, even care about cloud computing?

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While nebulous in precise meaning, the phrase “cloud computing” is nevertheless making a distinct impact on the world of IT. More companies are taking on the cloud, which means more development teams have to deal with the cloud, define what … Continue reading

Regular expressions – There is no try: only do, or do not

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Regular expressions are a language of string patterns built in to most modern programming languages, including Java 1.4 onward; they can be used for: searching, extracting from, and modifying text. How many times have you come to a piece of … Continue reading

Selecting which Java collection to use

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Java collections are one of the most commonly used data-structures by all Java professionals. But are you using the right collection class that would best suits your need. Most programmers usually end up useing Vectors, ArrayList, HashMap or Hashtable. There … Continue reading

Writing Java code in the cloud

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Even as cloud vendors and virtual computing providers boast about how moving to the cloud is a seamless process, those with experience know that the drastic move away from an in-house data center to deployment in the cloud is a … Continue reading

Can Web app firewalls replace baked-in application security?

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Despite the talent and hard work of today’s Java developers, enterprise Web and mobile applications may not be as secure as they should be. More than ever before, Java developers are code ninjas and mobile application magicians. Java applications running … Continue reading

Java – Singleton Design Pattern

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Singleton Pattern: A singleton pattern proposes that at any time there can be only one instance of an object (Singleton) created by the JVM. In order to make a class singleton we need to have the class constructor as private. … Continue reading