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SSL encrypted EJB calls with JBoss AS 7

Encrypting the communication between client and server provides improved security and privacy protection for your system. This can be an important requirement by the customer, especially ...
spring-interview-questions-answers

Spring Rest Controller with angularjs resource

Angularjs ngResource is an angularjs module for interacting with REST based services. I used it recently for a small project with Spring MVC and wanted to document a configuration ...
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Spice up your test code with custom assertions

Inspired by the @tkaczanowski talk during GeeCON conference I decided to have a closer look at custom assertions with AssertJ library. In my ‘Dice’ game I created a ‘Chance’ ...
java-interview-questions-answers

JPA 2.1 Type Converter – The better way to persist enums

Persisting enums with JPA 2.0 is possible, but there is no nice way to do it. Using the @Enumerated annotation, you can use EnumType.ORDINAL or EnumType.STRING to map the enum value ...
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Java 8 Friday: Better Exceptions

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every ...
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ElasticSearch-Hadoop: Indexing product views count and customer top search query from Hadoop to ElasticSearch

This post covers to use ElasticSearch-Hadoop to read data from Hadoop system and index that in ElasticSearch. The functionality it covers is to index product views count and top search ...
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Why use SerialVersionUID inside Serializable class in Java

Serialization and SerialVersionUID is always remains a puzzle for many Java developers. I often see questions like what is this SerialVersionUID, or what will happen if I don’t ...
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See Your Solr Cache Sizes: Eclipse Memory Analyzer

Solr uses different caches to prevent too much IO access and calculations during requests. When indexing doesn’t happen too frequently you can get huge performance gains by employing ...
java-interview-questions-answers

Integration Tests for External Services

Our systems often depend on 3rd party services (They may even be services internal to the company that we have no control on). Such services include Social Networks exposing APIs, SaaS ...
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Writing Clean Tests – Beware of Magic

It is pretty hard to figure out a good definition for clean code because everyone of us has our own definition for the word clean. However, there is one definition which seems to be ...
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