Ubuntu: may need to export libjvm.so
ls -l /etc/alternatives/java
will output something like: /etc/alternatives/java -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
then do:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/server/
export JCC_JDK=/usr/lib/jvm/java-8-openjdk-amd64
for macOS:
easy_install JCC-3.2-py3.6-macosx-10.13-x86_64.egg lucene-7.5.0-py3.6-macosx-10.13-x86_64.egg