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Top 10 Questions of Java Strings

The following are top 10 frequently asked questions about Java Strings. 1. How to compare strings? Use “==” or use equals()? In brief, “==” tests if references are equal and equals() tests if values are equal. Unless you ...
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Scalable Counters For Multi Core

Counters are required everywhere , for e.g. to find key KPI of application, load on application, total number of request served, some KPI for finding throughput of application & many more. With all these requirement complexit ...
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Three exciting Lucene features in one day

Yesterday was a productive day: suddenly, there are three exciting new features coming to Lucene. Expressions module The first feature, committed yesterday, is the new expressions module. This allows you to define a dynamic field ...
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MongoDB and Web applications

Today’s era is when data grows at very huge scale. Data storage is not a problem, yes but the way it gets structured and stored may increase or decrease the seek time for needed data blocks. Use Cases of ever increasing unstruct ...
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Spring Integration: A lightweight integration Approach

Today’s application expects access of all business in enterprise environment regardless of application technologies, which require, seamless integration with desperate systems. This integration can be achieved through wiring of ...
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Better JUnit-based Unit Tests with NetBeans 7.4 beta Hints

In my last post, I wrote about hints provided in NetBeans 7.4 beta that improve a developer’s ability to avoid nasty runtime issues with Java exception handling. In this post, I look at how two more hints provided by NetBean ...
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Exploring Apache Camel Core – Seda Component

The seda component in Apache Camel is very similar to the direct component that I’ve presented in previous blog, but in a asynchronous manner. To do this, it uses a java.util.concurrent.BlockingQueue as default implementation to ...
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WS-Security: using BinarySecurityToken for authentication

As we all know, one goal set by WS-Security is to enforce integrity and/or confidentially on SOAP messages. In case of integrity, the signature which is added to the SOAP message is the result of a mathematical process involving t ...
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On a quest for missing stacktraces

One comment to our recent blog post brought back some memories about a specific experience. The type of experience I wish I had not experienced. Long time before we founded Plumbr I was debugging an application that gave me an exc ...
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Configuring Hadoop with Guava MapSplitters

In this post we are going to provide a new twist on passing configuration parameters to a Hadoop Mapper via the Context object. Typically, we set configuration parameters as key/value pairs on the Context object when starting a ma ...
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