MG4J: Managing Gigabytes for Java
mg4j.di.unimi.it
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
MG4J (Managing Gigabytes for Java) is a free full-text search engine for large document collections written in Java. As a by-product, it offers several general-purpose optimised classes, including fast & compact mutable strings, bit-level I/O, (possibly s