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Enterprise Java
Apache Shiro Part 1 – Basics
Apache Shiro, originally called JSecurity, is Java security framework. It was accepted and became Apache top level project in 2010.…
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Software Development
MapReduce Questions and Answers Part 2
4 Inverting Indexing for Text Retrieval The chapter contains a lot of details about integer numbers encoding and compression. Since…
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Software Development
MapReduce Questions and Answers Part 1
With all the hype and buzz surrounding NoSQL, I decided to have a look at it. I quickly found that…
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Software Development
AppSensor – Intrusion Detection
Imagine that you have created a nice web application and secured it to your best. Users came, used it and…
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Core Java
Secure Encryption in Java
Last time I wrote about cryptography, I outlined Apache Shiro crypto API and shown how to use its two symmetric…
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Enterprise Java
ANTLR Tutorial – Hello Word
Antlr stands for ANother Tool for Language Recognition. The tool is able to generate compiler or interpreter for any computer…
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Enterprise Java
JNDI and JPA without J2EE Container
We wanted to test some JPA code with as simple setup as possible. The plan was to use only Java…
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