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Storm event processor – GC log file per worker

In the last three months, I am working with a new team building a product for Big Data analytics on Telecom domain. Storm event processor is one of the main frameworks we use and it ...
java-interview-questions-answers

Jibx Jersey2 Integration

Jersey2 provides inbuilt support for Jackson and JAXB. But Jibx is not supported by default. To use Jibx in conjunction with Jersey2, we are taking the XML input as a stream and after ...
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Live Templates in IntelliJ

As described here, IntelliJ’s live templates let you easily insert predefined code fragments into your source code. I have posted some of my most used templates below, a link to my ...
java-interview-questions-answers

Dropwizard: painless RESTful JSON HTTP web services

Java developers looking for a quick, painless way of creating production-ready RESTful JSON HTTP web services should consider the Dropwizard framework. Dropwizard brings together well-regarded ...
java-interview-questions-answers

Java EE CDI Qualifiers: Quick Peek

Qualifiers are the mainstay of type safety and loose coupling in Contexts and Dependency Injection (CDI). Why? Without CDI, we would be injecting Java EE components in a manner similar ...
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Difference between State and Strategy Design Pattern in Java

In order to make proper use of State and Strategy design Pattern in Core Java application, its important for a Java developer to clearly understand difference between them. Though both ...
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HashMap performance improvements in Java 8

HashMap<K, V> is fast, versatile and ubiquitous data structure in every Java program. First some basics. As you probably know, it uses hashCode() and equals() method of keys to ...
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ActiveMQ – Network of Brokers Explained – Part 3

Now that we have understood the basics of ActiveMQ network connector in part 1 and part 2 of this blog series, in this part 3, we will examine how ActiveMQ load balances consumers which ...
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ActiveMQ – Network of Brokers Explained – Part 2

In this blog we will see how duplex network connectors work. In the previous part 1 we created a network connector from broker-1 and broker-2. We were able to see how messages for ...
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Handy New Map Default Methods in JDK 8

The Map interface provides some handy new methods in JDK 8. Because the Map methods I cover in this post are implemented as default methods, all existing implementations of the Map ...
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