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SQL Developer’s “Securely” Encrypted Passwords

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Recently, while at one of our customers’ site, the customer and I needed to get access to a database. On my machine, I had stored the password, but the customer obviously didn’t want to rely on my machine, and the password itself is hashed, so we couldn’t guess it. But guess what? Yes we can! I googled a bit, and ...

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7 New Tools Java Developers Should Know

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                        Get ready to lock and load through this quick overview of some of the newest most innovative, tools around. In case you’ve missed it, RebelLabs recently released the results of a global survey of the Java tools and technologies landscape. Alongside the big names and established tools, the ...

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Listing and filtering directory contents in NIO.2

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There hasn’t been much happening in the area of listing directory contents until the release of Java 7. But since NIO.2 introduced a new way to do this it might be worth it to cover this area. One of big pluses of NIO.2 is the ability to use listing and filtering at once in one method call. This provides an ...

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Scala Maps and Sorting

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This is blog entry originally written in the middle May 2014. I also seem to writing this code every 3 months or so and then I forgot. So I need a trigger to remember exactly how to work Scala Maps and sort the entries by key. Let’s break out the Scala REPL.               Welcome ...

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How not to approach me on LinkedIn

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Recently, I have been invited to connect with a lot of people on LinkedIn and most of them were headhunters, recruiters and various HR related roles. The amount of invites from these people was really appealing to my ego at first, but it began to bother me after some time. Now, most of these invites end up in the ignore ...

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How the Cloud makes Windows irrelevant

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Windows has been running on the majority of PCs for many years now. Microsoft successfully translated its client monopoly into a stronghold server position. However times are changing and it is no surprise that the new CEO of Microsoft is a Cloud expert. Cloud can make Windows irrelevant. Why? On the cloud you no longer use a client-server architecture. HTML5 ...

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How to create MIDlet in J2ME

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Overview Java Mobile Application is called J2ME. Normally when we are working in the mobile technology field then we must think about J2ME application. Through this way we can develop our mobile application and also install it in our device through the jad or jar file. In current years the largest enhancement in mobile phone development was the introduction of ...

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How does Spring @Transactional Really Work?

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In this post we will do a deep dive into Spring transaction management. We will go over on how does @Transactional really work under the hood. Other upcoming posts will include: how to use features like propagation and isolation what are the main pitfalls and how to avoid them JPA and Transaction Management It’s important to notice that JPA on ...

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Java 8 Optional: How to Use it

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Java 8 comes with a new Optional type, similar to what is available in other languages. This post will go over how this new type is meant to be used, namely what is it’s main use case. What is the Optional type? Optional is a new container type that wraps a single value, if the value is available. So it’s ...

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