Here we go again..

I tend not to get sick a lot, at most once a year, and even then it’s usually just a cold. But in the past couple of months, I’ve been struck down twice! Something’s up and I need to figure out what it is so it doesn’t happen again. I really dislike being ill, I mean I’m sure most people do…

Java Annotations Are a Big Mistake

Annotations were introduced in Java 6 in 2006, and we all got excited. Such a great instrument to make code shorter! No more Hibernate/Spring XML configuration files! Just annotations, right there in the code where we need them. No more marker interfaces, just a…

Java SSL woes

So you’ve written some code, to connect to something by SSL…and you get an exception when you connect… well I find the best thing todo is enable extra debug for ssl i.e.

add to java command line arg

-Djavax.net.debug=ssl

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A success story with STJS

TL;DR: We’ve successfully migrated a small JavaScript codebase to STJS and it has helped a lot to clean it up and refactor.

The background

I inherited a relatively small JavaScript codebase and although it worked fine, I…

@Valid @RequestBody causing a HTTP 400 error

When I was during some integration testing on some Spring controllers, I always encountered this HTTP 400 but I could not debug this since it does not log anything. At least I have an idea that the issue is the Validation of the json input. But I’m too…

Today I Learned: Semaphores

For now, today will be my last post on multithreading in Java. We will top off the discussion with an exploration of Semaphores. Semaphores are just like locks and mutexes except, they allow multiple threads to access the critical section at once! We are able to set a bounded…

java.io.UnsupportedEncodingException: unicode-1–1-utf-7

This occasionally occurs in Java programs, when you try to decode some text, which by default the Java runtime doesn’t support.

So how to fix it ?