Core Java
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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…
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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…
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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…
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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…
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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…
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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.…
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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…
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Java Concurrency – CyclicBarrier Example
CyclicBarrier in Java is a synchronizer introduced in JDK 5 on java.util.Concurrent package along with other concurrent utility like Counting…
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