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Stacks and Queues in Java

I have been working on some Java code recently that required both a stack and a queue. The choices to use aren’t immediately obvious. There is a Queue interface, but no clear concrete ...
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Unique hashCodes is not enough to avoid collisions

There is a common misconception that if you have unique hashCode() you won’t have collisions.  While unique, or almost unique, hashCodes are good, this is not the end of the ...
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Adding Social Sign In to a Spring MVC Web Application: Configuration

In the good old days users logged in by using the combination of username and password. Although nowadays some people still prefer the traditional way, a growing number of users want ...
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Step by step auto code generation for POJO domain java classes and hbm using Eclipse Hibernate plugin

Overview: In this tutorial we’ll use Eclipse Hibernate tool to auto generate domain objects and the corresponding hbm xml files. If your are working in a large or medium size projects ...
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Write an auto-debugger to catch Exceptions during test execution

Previously I have stated that there are some exceptions you would always want to keep an debugger breakpoint on for. This help prevents code rotting away without you noticing – ...
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Java Object to Object Mapper

I’ve been using Dozer some time on the project. But, recently I have got very interesting error which motivates me to look around and try to use other Object to Object mapper. Here ...
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Pagination with Couchbase

If you have to deal with a large number of documents when doing queries against a Couchbase cluster it is important to use pagination to get rows by page. You can find some information ...
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Light-weight, open-source integration: Apache Camel or Spring Integration?

First of all, for full disclosure, for the last 1.5 years, I’ve been working as a consultant for FuseSource (now Red Hat) supporting SOA and Integration projects for large and small ...
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Spring-injected Beans in JPA EntityListeners

In Database Encryption Using JPA Listeners I discussed transparent encryption using a JPA EntityListener. This approach was transparent in the sense that the JPA Entity was (nearly) ...
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JavaOne 2013 Vicariously

I was disappointed that I was not able to attend JavaOne 2013, but was happy to see numerous useful posts covering this annual conference. In this post, I link to many of these resources ...
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