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Java 8 Friday Goodies: Lambdas and SQL

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. We have blogged ...
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Spring JMS: Processing messages within transactions

1.Introduction This post will show you how an error in the execution of the consumer during the asynchronous reception of messages with JMS, can lead to the loss of messages. I then ...
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Java 8 Type Annotations

Lambda expressions are by far the most discussed and promoted feature of Java 8. While I agree that Lambdas are a large improvement I think that some other Java 8 feature go a bit short ...
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Transparent PATCH support in JAX-RS 2.0

The PATCH method is one the the less well loved HTTP methods simple because until recently there really wasn’t a standard PATCH format. This has been standardized for JSON for ...
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Error handling in Storm Trident topologies

This post summarizes my current approach to error handling when designing Storm Trident topologies. I focus here on code design, not on deployment good practices like supervision nor ...
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Customizing Log4j 2.0

We are getting closer and closer to a Log4j 2 GA release and for that reason we should start looking into what it will give us. Personally I have a lot of reasons to be excited about ...
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Mock final class

Foreword If you already read some other blog post about unusual mocking, you can skip prelude via this link. I was asked to put together examples how to mock Java constructs well know ...
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Spring for Apache Hadoop 2.0 M5

Spring has happily announced the Spring for Apache Hadoop 2.0 M5 milestone releases, while they are also getting much closer to a release candidate. In the Spring blog there is a good ...
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Java: Handling a RuntimeException in a Runnable

At the end of last year I was playing around with running scheduled tasks to monitor a Neo4j cluster and one of the problems I ran into was that the monitoring would sometimes exit. I ...
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Retry web service operations with RequestHandlerRetryAdvice

1.Introduction Sometimes when invoking a web service, we may be interested in retrying the operation in case an error occurs. When using Spring Integration, we can achieve this functionality ...
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