A singleton pattern is probably the simplest well-known design pattern, but still people often implement it incorrectly in Java. (more…)

Ever wondered why Eclipse/Netbeans keeps pausing for a while every now an then? Especially right at the time when you want to show something in the code to your dear colleages? It feelt embarrassing and awkward, didn’t it?

I found out that most of the time the IDE pauses because of Garbage Collector execution. The subtle little element in design of JVM, which usually does great job in relieving us developers from worrying about memory consumption, and most people are just happy that it does its job well and ignore it most of the time. However, the consequences of running Garbage Collector may surprise us if we simply ignore it. (more…)

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