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It’s not a bug, it’s…

When does a bug become a bug? Who decides that it is a bug? How many legs does a lamb have if I say the tail is a leg?  The answer is 4, just because I say the tail is a leg does ...
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Hibernate Facts: Favoring bidirectional Set(s) vs List(s)

Hibernate is a great ORM tool, and it eases development considerably, but it has a lot of gotchas you must be aware of if you want to use it properly. On medium to large projects it’s ...
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Why Do We Estimate, Anyway?

I’ve been thinking about estimation these days. After the healthcare.gov site fiasco, and all the schedule games–many of which are estimation problems, I thought about why we estimate. The ...
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Natural Ids in Hibernate

A natural id is a property or a set of properties that would identify an entity uniquely. We can have at-most one natural id defined for an entity. When Hibernate sees natural-id tag ...
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Top 5 Useful Hidden Eclipse Features

Eclipse is a beast. A device whose mystery is only exceeded by its power. Some would call it a continuum transfunctioner. Others would call it a transmogrifier. Yes, it is so huge, ...
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Neo4j: Making implicit relationships explicit & bidirectional relationships

I recently read Michal Bachman’s post about bidirectional relationships in Neo4j in which he suggests that for some relationship types we’re not that interested in the relationship’s ...
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So, You Want To Quit Your Job? (Fantasy Versus Reality)

This is part two in a series about quitting your job.  Check out the first post here. Imagine you are going for a run in your neighborhood; just a casual jog. You are running along ...
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Most efficient way to increment a Map value in Java – Only search the key once

This question may be considered too basic, but is frequently asked in the forums. In this post, I will discuss one way that only searches the key in Map ONCE. Let’s first look at ...
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Simple CRUD using Servlet 3.0, Redis/Jedis and CDI – Part 1

In this post we will build a simple user crud. The data will be stored in Redis. To interact with Redis we will use Jedis library. CDI for Depedency Injection and Servlet 3.0 for the ...
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Adding Social Sign In to a Spring MVC Web Application: Registration and Login

The first part of this tutorial described how we can configure Spring Social 1.1.0 and Spring Security 3.2.0 but it left two very important questions unanswered. These questions are:How ...
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