I'd previously been using 4.9.0. Making a huge jump in release numbers is scary. Will it invalidate existing indexes? Has the Lucene API changed a lot? Will I be forced to migrate to python 3? That said, I was desperate and tried all the official releases (4.10.1, 6.2.0, 6.4.1, 6.5.0). It just so happened that 4.10.1 was the first thing I got to work.
Here are things I ran into. Just mentioning them, not asking for changes. The distribution packages for python-lucene is totally busted. I made the original package, someone else updated it in 2013, but it was all built against openjdk-7-jdk which is long gone. I think python-setuptools that ship with Ubuntu 18.04 do not include shared support. The jcc/patches no longer apply. I ended up hacking the heck out of it (including copying files from older versions of Ubuntu) to add shared support. I think had some trouble with conflicting JVMs and really only got things working after removing all but one from the system. I got confused by python setup.py build; I kept modifying setup.py and trying to rebuild, but didn't notice it didn't actually rebuild. Ended up doing a lot of rm -rf once I realized this. There are a lot of if statements in jcc/setup.py that try to reason about shared support. I often got confused what it thought. Ended up removing all the ifs and locking everything to shared. Due to sleepiness, for a while I mistakenly thought this line was a typo in the Makefile and was supposed to be two separate lines. ANT=JAVA_HOME=/usr/lib/jvm/java-8-oracle /usr/bin/ant It looks like libjava.so and libjvm.so in openjdk-11-jdk are in different directories compared to openjdk-8-jdk.
