Bug#1020551: RFP: lucene9 -- full-text search engine library for Java

[Andrius Merkys <merkys@debian.org>]

Hello,

Buildsystem is Gradle. Nevertheless, I had some success in building 
lucene9 using plain javahelper:

$ find . -name module-info.java | xargs rm
$ 
CLASSPATH=/usr/share/java/junit4.jar:/usr/share/java/randomizedtesting-runner.jar:/usr/share/java/spatial4j.jar:/usr/share/java/antlr4-runtime.jar:/usr/share/java/jetty9-server.jar:/usr/share/java/httpclient.jar:/usr/share/java/assertj-core.jar:/usr/share/java/opennlp-tools.jar:/usr/share/java/morfologik-stemming.jar:/usr/share/java/icu4j.jar:/usr/share/java/morfologik-polish.jar:/usr/share/java/s2-geometry-library-java.jar:/usr/share/java/hppc.jar 
jh_build --no-javadoc --javacopts='-source 11 -encoding UTF-8' 
lucene.jar lucene/

This leaves with ~150 errors, some of them due to unpackaged 
dependencies, such as procfork.

Andrius