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Why Scala is Not For You (nor Me)

Recently I got the chance to evaluate possible approaches for greenfield development of some cloud services that eventually have to scale to Twitter's scale. "Greenfield" meaning that no code has been written yet, there was little existing infrastructure, and most hires were not done either. So an ideal situation for doing an evaluation of technologies…

Java’s “Uncompilable Source” RuntimeException Mystery Solved

Two days and a countless ...(censored)... later, I think I figured it out. Here's the mystery: I successfully compile my Java code into a bunch of Java archives (JARs). I deploy that code to my server. The app fails to start. The stack trace shows: some of my code runs my code invokes some of…

A Diet for Java (diet4j)

When Java was introduced to an incredible reception in 1995 -- I had just come to California -- Sun was the king of the Unix systems manufacturers. While there were still others like HP, IBM and Silicon Graphics, Sun had the momentum: Sun pioneered "open systems", it open-sourced even its chip designs, and it had…