Core Java
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Optional in Java 8 cheat sheet
java.util.Optional<T> in Java 8 is a poor cousin of scala.Option[T] and Data.Maybe in Haskell. But this doesn’t mean it’s not…
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Simple and lightweight pool implementation
Object pools are containers which contain a specified amount of objects. When an object is taken from the pool, it…
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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…
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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…
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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…
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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…
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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…
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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…
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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…
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