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How does Scala work it’s Magic?


Hello everyone, today we’re gonna talk a little about the said “automagics” of Scala, how it does what it does, and generates Java code in the end. Because if you think about it, if all that it does is generate Java classes, then we should just do it directly with Java right? Wrong. I’m not going to go really deep ...

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Working with Amazon Simple Queue Service using java


Amazon Simple Queue Service or SQS is a highly scalable hosted messaging queue provided by Amazon Webservice stack. Amazon SQS can be used to completely decouple operations of different components within the system which otherwise exchange data to  perform independent tasks. Amazon SQS also helps us in saving the data which would be lost in case the application is down ...

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Garbage Collection in Java (1)


This is the first in a series of posts about Garbage Collection (GC). I hope to be able to cover a bit of theory and all the major collectors in the hotspot virtual machine over the course of the series. This post just explains what garbage collection is and elements common to different collectors. Why should I care? Your Java ...

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Common Red Flags in Java Development


In several years of developing, reading, reviewing, and maintaining hundreds of thousands of lines of Java code, I have become accustomed to seeing certain “red flags” in Java code that often (but perhaps not always) imply problems with the code. I’m not talking about practices that are always wrong, but rather am talking about practices that might, in limited circumstances, ...

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The Biggest Flaw of Spring Web Applications


The developers who are using Spring Framework in their applications are good to talk about the benefits of dependency injection. Unfortunately, they are not so good to leverage its benefits such as the single responsible principle and separation of concerns in their applications. If we take a look at any Spring powered web application, the odds are that the application ...

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MEDIT Symposium Conference 2013


Starting this year, an exciting Software Development Conference, is planned in the heart of the Mediterranean, October 3-4, 2013. The event features two full conference days with multiple tracks, providing a community for learning, networking and tracking innovation in software development. We believe that “Knowledge Empowers You” and MEDIT Symposium conference gives the opportunity to affordably attend up to thirty ...

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What is Important in Secure Software Design?


There are many basic architectural and design mistakes that can compromise the security of a system: Missing something important in security features like access control or auditing, privacy and compliance requirements; Technical mistakes in understanding and implementing defence-against-the-dark-arts security stuff like crypto, managing secrets and session management (you didn’t know enough to do something or to do it right); Misunderstanding ...

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Spring Integration – Robust Splitter Aggregator


A Robust Splitter Aggregator Design Strategy – Messaging Gateway Adapter Pattern What do we mean by robust? In the context of this article, robustness refers to an ability to manage exception conditions within a flow without immediately returning to the caller. In some processing scenarios n of m responses is good enough to proceed to conclusion. Example processing scenarios that ...

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Oracle Coherence Best Practices for Session Management (Replication) in Clustered Application Servers Environment


Oracle Coherence is a in-memory data grid product, which is also being used commonly for Session Replication across cluster of application server nodes. It supports wide variety of application servers like WebLogic, WebSphere, Tomcat, JBoss, etc. Coherence*Web is Session Management module (built on top of Coherence) used for managing session information in clustered environment. I would recommend following best practices ...

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Lines of Code is a Bad Metric, Either Way


The Dropbox team had a post explaining their decision to use CoffeeScript instead of JavaScript and, in particular, re-writing their existing codebase in CoffeeScript. In case you are unfamiliar with CoffeeScript, it is a language that compiles down into JavaScript, so you have the option to do new development in CoffeeScript while retaining your previous code in JavaScript. It is ...

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