blog.kdgregory.com

I just made what I hope is the last release of my log4j-aws-appenders library. It started almost six years ago as a "weekend project...

The mapped diagnostic context is an under-appreciated feature of logging libraries. It's essentially a thread-local Map , to which ...

A few months ago I wrote a post about startup times of AWS Lambdas written in Java. This post has a similar title, but a different topic: ...

Update, 2024-01-24 Well, I was wrong: AWS is end-of-lifing the v1 SDK . They will stop adding new features in July of this year, ...

A few weeks ago I answered a Stack Overflow question about the poor performance of Java Lambdas. I gave some general suggestions, but didn...

When I want to package a Java application in a single JAR with all of its dependencies, I normally turn to Maven’s Shade plugin. This ...

Backwards compatibility has long been a hallmark of Java: there are many classes and methods still in the standard library even though ...

This post is a short introduction to building a logging pipeline based on managed services provided by AWS. I've covered this topic...

This past week we had a mini-fire-drill at work, in response to a CERT vulnerability note titled “Apache Commons Collections Java library ...

Here's some code that you might see since Java 7 appeared. Can you spot the bug? public List<String> extractData(File file, Str...

I recently saw a comment on my reference objects article that said, in effect, “he mentioned finalizers but didn't say DON'T USE T...

For all that Java got right, I'm looking for something new. I can't claim that my motivation is a good one: I'm starting to...

Java turns 18 this year. I've been using it for 14 of those years, and as I've said before, I like it , both as a language ...

My website is losing traffic. It never had terribly high traffic, other than the days it was mentioned on Reddit or Hacker News, but in the...

Here's a puzzle: what does the following code print: Iterator itx = new ArrayList ().iterator(); Method method = itx.getClass().getM...

JSP scriptlets have a bad reputation; everyone can point to their favorite example of scriptlet abuse. In my case, it was a 12,000 line (ye...