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5 Things You Didn’t Know About Synchronization in Java and Scala

Practically all server applications require some sort of synchronization between multiple threads. Most of the synchronization work is done for us at the framework level, such as by ...
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Servlet Upload File and Download File Example

File Upload and Download and common tasks in a java web application. Since I have written a lot about java servlet recently, I thought to provide a sample example of file upload and ...
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Safely Create and Store Passwords

Nearly every time when it comes to user profiles it is necessary to manage user credentials and thus be able to create and store user passwords. It should be common practice to use ...
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Apache log4j is the leading logging framework

According to a survey from Zero Turnaround Apache log4j is the leading Java logging framework. This was actually a very interesting survey. It shows SLF4J is most often used as a logging ...
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Spring MVC: Resources

One of the most frequent questions which I receive from my blog readers is how to use css and javascript files in application with Spring MVC. So it’s a good opportunity to write ...
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Injecting Test Doubles in Spring using Mockito and BeanPostProcessors

I’m pretty sure that if you have ever used Spring and are familliar with unit testing, you have encountered a problem related to injecting mocks / spies (Test Doubles) in the ...
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DI / CDI – Basics

Introduction (DI/CDI Basics) First of all, I would assume there is a bit of confusion to this, but the truth of the matter is, they are just the same – the difference is that usage ...
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Almost named method arguments in JDK 8

Sometimes it would be really nice to have named method parameter in Java, this doesn’t look likely for a long while but there is always another little work around, for example ...
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Which memory is faster Heap or ByteBuffer or Direct ?

Java is becoming new C/C++ , it is extensively used in developing High Performance System. Good for millions of Java developer like me! In this blog i will share my experiment with ...
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Understanding the OutOfMemoryError

Whenever you find yourself staring a stacktrace with OutOfMemoryError in it, it should all be crystal clear. The program has got no more elbow room and is dying just because of lack ...
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