Parsing a CSV file is a simple task, with great library support. This short example uses Commons CSV, together with Java streaming techniques. It also uses an enum, a lambda, a static factory method, a method reference, and other techniques. In other words, a combination of different tools, with some notes to help me remember it all.

Quick note on the syntax for using control characters in bash commands…

Why is the data in one of my fields being truncated to 4,000 characters when I read from a data source or via a lookup?

Note to self about gathering statistics for a Linux process, with a bonus note on generating a large random data file as input.

Some basic notes on how to install Corretto onto a Linux 2 instance on AWS.

Thymeleaf uses the Apache Commons OGNL (Object Graph Navigation Library). But there is also SpEL (the Spring Expression Language). This is a quick note on the differences - and an example where different behaviors may trip you up.

Be wary of using hyphens (dashes) in Thymeleaf expression names, as these can lead to some surprising results.

A look at how to draw shapes onto an image displayed in an HTML canvas. Also, how to display those shapes with rollovers and via links.

What starts out as a simple question (where do I put my JDBC drivers in Tomcat?) quickly leads down a rabbit hole…

Notes on the Lucene Classic Query Parser and its Syntax