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I/O Demystified

With all the hype on highly scalable server design and the rage behind nodejs I have been meaning to do some focused reading on IO design patterns to which until now couldn’t ...
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Creating a Java Dynamic Proxy

Java Dynamic proxy mechanism provides an interesting way to create proxy instances. The steps to create a dynamic proxy is a little tedious though, consider a proxy to be used for auditing ...
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Five useful ways to sorting in java

A rapid overview of java sorting :                     normal sort of list : private static List VEGETABLES = Arrays.asList("apple", ...
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Java: Mergesort using Fork/Join Framework

The objective of this entry is to show a simple example of a Fork/Join RecursiveAction, not to delve too much into the possible optimizations to merge sort or the relative advantages ...
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Java Thread at RUNNABLE state is not really running

Recently, I was doing an analysis/tuning on a Java application server installation in order to identify the bottlenecks and fix them. The most common action in such procedure (tuning) ...
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Exception: java lang AbstractMethodError

This java.lang.AbstractMethodError is usually thrown when we try to invoke the abstract method.Generally this error is identified at the compile time itself,if this ...
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Java Exception: java lang NoSuchMethodError

If you have a look at the error message java.lang.NoSuchMethodError you may understand that the Java Virtual Machine is trying to indicate us that the method you invoked is not available ...
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Memory Access Patterns Are Important

In high-performance computing it is often said that the cost of a cache-miss is the largest performance penalty for an algorithm. For many years the increase in speed of our processors ...
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Java 8: Testing the Lambda Water

Java 8 is about a year away and comes with a language feature I really look forward to: Lambda Expression. Sadly the other big feature, Modules for the Java Platform, has been delayed ...
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Java Executor Service Types

ExecutorService feature was come with Java 5. It extends Executor interface and provides thread pool feature to execute asynchronous short tasks. There are five ways to execute ...
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