To install without clobbering your existing version use sdkman.
export SDKMAN_DIR="$HOME/bin/sdkman"
curl -s "https://get.sdkman.io" | bash
exec $SHELL
sdk install 8.0.222-amzn
sdk use 8.0.222-amzn
java -version
cd ~/bin
curl -L -O https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-1.7.6.tar.gz
tar -xvf elasticsearch-1.7.6.tar.gz
cd elasticsearch-1.7.6/bin
elasticsearch
Links: