apt-get install openjdk-7-jre-headless
wget 'http://nlp.stanford.edu/software/stanford-corenlp-full-2015-04-20.zip'
unzip stanford-corenlp-full-2015-04-20.zip
add-apt-repository ppa:openjdk-r/ppa
apt-get install openjdk-8-jdk
update-alternatives --config java
update-alternatives --config javac
## Update StanfordCoreNLP.properties nano StanfordCoreNLP.properties

See Also