Core Java
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Playing With Java Concurrency
Recently I needed to transform some filet that each has a list (array) of objects in JSON format to files…
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Thread local storage in Java
One of the rarely known features among developers is Thread-local storage. The idea is simple and need for it comes…
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How and Why is Unsafe used in Java?
Overview sun.misc.Unsafe has been in Java from at least as far back as Java 1.4 (2004). In Java 9, Unsafe will…
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Really Too Bad that Java 8 Doesn’t Have Iterable.stream()
This is one of the more interesting recent Stack Overflow questions: Why does Iterable not provide stream() and parallelStream() methods?…
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Own your heap: Iterate class instances with JVMTI
Today I want to talk about a different Java that most of us don’t see and use every day, to…
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On heap vs off heap memory usage
Overview I was recently asked about the benefits and wisdom of using off heap memory in Java. The answers may be…
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Self-healing JVM
This post is an example about an application where the first solution to each and every IT problem – “have…
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Manipulating JARs, WARs, and EARs on the Command Line
Although Java IDEs and numerous graphical tools make it easier than ever to view and manipulate the contents of Java…
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Java SE 8 new features tour: Traversing, filtering, processing collection, & methods enhancements with Lambda
In this article of the “Java SE 8 new features tour” series, we will deep dig into explanation, and exploring…
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