* Hilko Bengen: > That being said, it might be possible to package a newer version of > icu4j instead (I haven't tried building Lucene4 against anything newer > than 49.1.) Upstream is at 52.1 right now. Meh. As it turns out, this doesn't work. Some APIs were removed between 49 and 52 and Lucene doesn't build with 52.1. Cheers, -Hilko