This is a layout manager for Java AWT that is specifically well-suited for creating form-like layouts. It was created by David Ekholm.
I made extensive use of it in my own hobby projects back in the day, so I reached out to them to ask if the code was uploaded somewhere I could contribute with my own additions in form of Javadoc. David told me I could upload the code to GitHub myself if I wanted to, and thus this repo came to life.
This was 8+ years ago and I have no interest in further development, partly because I'm transitioning away from Swing towards JavaFX. Therefor I will archive this repo. If it's useful for someone, that's great.
Download the source files and include them in your project.
River Layout is distributed under an LGPL v3 license. Read LICENSE for full license terms.