Core Java
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Local variables inside a loop and performance
Overview Sometimes a question comes up about how much work allocating a new local variable takes. My feeling has always…
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Weak, Weaker, Weakest, Harnessing The Garbage Collector With Specialist References
When and when not to use specialist references in Java Weak, Soft and Phantom references are dangerous and powerful. If…
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Using Apache Commons Functor functional interfaces with Java 8 lambdas
Apache Commons Functor (hereon [functor]) is an Apache Commons component that provides a functional programming API and several patterns implemented…
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Ensuring the order of execution for tasks
Sometimes it is necessary to impose certain order on the tasks in a threadpool. Issue 206 of the JavaSpecialists newsletter…
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Can synchronization be optimised away?
Overview There is a common misconception that because the JIT is smart and synchronization can be eliminated for an object…
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Under the JVM hood – Classloaders
Classloaders are a low level and often ignored aspect of the Java language among many developers. At ZeroTurnaround , our…
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Java Object resurrection
Overview After an object which overrides finalize() is collected it is added to a finalization queue to be cleaned up…
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Java – far sight look at JDK 8
The world is changing slowly but surely. After the changes that gave java a fresher look with JDK 7, the…
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Performance of inlined virtual method invocations in Java
Overview One of the benefits of dynamic compilation it the ability to support extensive method inlining on virtual method code.…
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