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How to use NodeManager to control WebLogic Servers

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In my previous post, you have seen how we can start a WebLogic admin and multiple managed servers. One downside with that instruction is that those processes will start in foreground and the STDOUT are printed on terminal. If you intended to run these severs as background services, you might want to try the WebLogic node manager wlscontrol.sh tool. I ...

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Application Security – Can you Rely on the Honeymoon Effect?

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I learned about some interesting research from Dave Mortman at this year’s RSA conference in San Francisco which supports the Devops and Agile arguments that continuous, incremental, iterative changes can be made safely: a study by by the MIT Lincoln lab (Milk or Wine: Does Software Security Improve with Age?) and The Honeymoon Effect, by Sandy Clark at the University ...

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Java can finally join strings

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I am sure you were in a situation in which you wanted to join multiple strings. If you were using a programming language other than Java you probably used the join() function provided by the programming language. If you were using Java you could not do this. There was no join() method. The Java Standard Class Library provided you tools ...

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The Programmer Productivity Paradox

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Programmers seem to be fairly productive people. You always see them typing at their desks; they chafe for meetings to finish so that they can go back to their desks and code. When asked, they will say that there is not enough time to produce the code, and the sooner they can start coding, the sooner they will be done. ...

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How HashMap works in java

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Most common interview questions are “How HashMap works in java”, “How get and put method of HashMap work internally”. Here I am trying to explain internal functionality with an easy example. Rather than going through theory, we will start with example first, so that you will get better understanding and then we will see how get and put function work ...

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The Microservice Architecture Sounds Like Service-Oriented Architecture

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I didn’t understand the service-oriented architecture. I thought that it was just one of those highly theoretical and very impractical software architecture patterns. In other words, I considered it to be an architecture fanatics’ wet dream. Then I read an article titled Microservices by Martin Fowler, and the service-oriented architecture started suddenly make sense to me. What Changed My Mind? ...

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Android Wear SDK: Set up “Hello world”

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In this post I want to describe my first experience with Android Wear SDK.  This is a very simple project just to test how it works and how we can set up the environment. You can refer to this link if you want to have more detailed information. The first thing you have to do is open Android SDK Manager ...

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Cloud Buzz: IaaS, PaaS, SaaS

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Enough hype! Lets clear the air. I am going to try and provide simple analogies that will hopefully help you make sense of the terminologies associated with Cloud technologies and make them ‘stick’. The Cloud my friends, is nothing but the Internet. Different vendors  set up the Infrastructure, Platform and Software and make them available to us from remote locations over ...

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Empathy in OSS – It’s Important

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Spending nearly my entire working day (and many evenings) with Open Source projects I don’t maintain I have come to form an opinion or two on the use of OSS – specifically when it comes to contributing to projects. We’ve come a long way as a community with tools like Github, making it easier and easier to get an OSS ...

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A SQL query DSL for Scala by ScalikeJDBC

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There are a tremendous amount of SQL APIs natively written in Scala. Manuel Bernhardt has summarised a nice collection in his a post. Another collection of Scala SQL APIs can be seen in this Stack Overflow question. One API that we want to focus on in particular is ScalikeJDBC (licensed ASL 2.0), which has recently published a SQL query DSL ...

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