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Spring Integration File Polling and Tests

I recently implemented a small project where we had to poll a folder for new files and then trigger a service flow on the contents of the file. Spring Integration is a great fit for ...
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Persistent breakpoints every java developer should have

When a developer is working in Java there are a few failure cases you always want to know about even if you were trying to debug something else. Here is a list of the persistent breakpoints ...
spring-interview-questions-answers

Spring from the Trenches: Adding Validation to a REST API

I am a bit ashamed to admit this but until yesterday, I had no idea that I can add validation to a REST API by using the @Valid and the @RequestBody annotations. This was not working ...
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Experiment with ConcurrentHashmap

I am investigating a memory issue in one of my recent projects where data is kept in memory for fast access, but the memory footprint of application is very high. This application was heavily using ...
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Accessing An Artifact’s Maven And SCM Versions At Runtime

You can easily tell Maven to include the version of the artifact and its Git/SVN/… revision in the JAR manifest file and then access that information at runtime via getClass().getPackage.getImplementationVersion(). ...
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Parsing XML using DOM, SAX and StAX Parser in Java

I happen to read through a chapter on XML parsing and building APIs in Java. And I tried out the different parser available on a sample XML. Then I thought of sharing it on my blog ...
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Spring Data Solr Tutorial: Adding Custom Methods to a Single Repository

The previous part of my Spring Data Solr tutorial taught us how we can create static queries by using query methods. The natural next step would be describe how we can create dynamic ...
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Spring Data Solr Tutorial: Query Methods

We have learned how we can configure Spring Data Solr. We have also learned how we can add new documents to the Solr index, update the information of existing documents and delete documents ...
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Power of Java MemoryMapped File

Power of Java MemoryMapped File In JDK 1.4 an interesting feature of Memory mapped file was added to Java, which allows to map any file to OS memory for efficient reading. A memory ...
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Spring Data Solr Tutorial: CRUD (Almost)

In the previous part of my Spring Data Solr tutorial, we learned how we can configure Spring Data Solr. Now it is time to take a step forward and learn how we can manage the information ...
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