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Lessons Learnt in Product Development

Product development is an interesting activity.  It involves a lot of challenges and lot of learnings.  But over time, we get to learn a lot of crucial lessons.  In this post, I ...
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This is Stuff: Cryptography & Theory 1: Meaning of Secure

Cryptography & Theory is series of blog posts on things I learned in coursera stanford online crypto class. The class contained just right mixture of theory, math and programming ...
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Java WebSockets (JSR-356) on Jetty 9.1

Jetty 9.1 is finally released, bringing Java WebSockets (JSR-356) to non-EE environments. It’s awesome news and today’s post will be about using this great new API along ...
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(Part 1 of 3): Synopsis of articles & videos on Performance tuning, JVM, GC in Java, Mechanical Sympathy, et al

I have been contemplating for a number of months about reviewing a cache of articles and videos on topics like Performance tuning, JVM, GC in Java, Mechanical Sympathy, etc… ...
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MongoDB Facts: 80000+ inserts/second on commodity hardware

While experimenting with some time series collections I needed a large data set to check that our aggregation queries don’t become a bottleneck in case of increasing data loads. We ...
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Using Matchers in Tests

Gone are the days when we were forced to write way too many assertion lines in our testing code. There is a new sheriff in town: assertThat and his deputy: the matchers. Well, not that ...
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A paradox about typesafety and expressiveness

It’s often argued that dynamic typing is more expressive, and I am, for the most part, willing to go along with that characterization. By nature, a language with dynamic typing ...
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G1 vs CMS vs Parallel GC

This post is following up the experiment we ran exactly a year ago comparing the performance of different GC algorithms in real-life settings. We took the same experiment, expanded ...
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Uncompressing 7-Zip Files with Groovy and 7-Zip-JBinding

This post demonstrates a Groovy script for uncompressing files with the 7-Zip archive format. The two primary objectives of this post are to demonstrate uncompressing 7-Zip files with ...
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Investigating Memory Leaks Part 1 – Writing Leaky Code

I found this little problem the other day: there’s this server that runs for a while and then falls over. It’s then restarted by its startup script and the whole process repeats ...
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