KISDigital — ColdFusion, Lucee & BoxLang
Latest
The JVM Was Calling System.gc() Behind My Back
Feedhouse, a small BoxLang RSS reader, was running up to 70 full GCs an hour with its heap a quarter full. The likely cause: when direct (off-heap) buffer memory reaches -XX:MaxDirectMemorySize, the JDK calls System.gc() itself, and I had capped it at 64 MB. Raising the cap to 128 MB cut full GCs to 2-5 an hour, past the point where the spike used to begin. How I tracked it down with hourly JVM metrics and an admin GraphQL API, driven by Claude Code.
Follow along
New articles on BoxLang, CFML and the JVM web stack, wherever you already read.
Most read
What readers keep coming back to.
Projects
Open-source modules and tools, documented here.
New
Feedhouse
A feed reader in the spirit of Google Reader. You pick the sources, it shows what's new in the order it was published, and nothing ranks your feed for you. RSS, YouTube, podcasts, Mastodon and Bluesky, with read later, highlights and full-text search. Built on BoxLang and BoxExpress.
Visit feedhouse.app
New
DismalThreads
A community of groups, posts and threaded comments, rebuilt from bxThreads. Join public groups or ask into private ones, follow friends, and react and reply with everything updating live. Built on BoxLang and BoxExpress, with a React front end.
Visit dismalthreads.com
boxlang-express
An Express.js-style API for building lightweight HTTP servers in BoxLang.
bx-activitypub
ActivityPub federation for BoxLang apps — publish posts to Mastodon and the fediverse, and accept public replies back.
bx-zork
A from-scratch text-adventure parser engine in BoxLang, loaded with the world of Zork I.
coldbox-graphql
A schema-agnostic ColdBox module that serves a GraphQL API from SDL files you supply.
From the archive
Older posts worth another look. A new pick each day.
Topics
Browse everything by tag.