install java
#Install java in Linux sudo apt install openjdk-11-jre-headless -y # version 11.0.10+9-0ubuntu1~20.04, or sudo apt install default-jre -y # version 2:1.11-72 sudo apt install openjdk-8-jre-headless -y # version 8u282-b08-0ubuntu1~20.04 sudo apt install openjdk-13-jre-headless -y # version 13.0.4+8-1~20.04 sudo apt install openjdk-14-jre-headless -y # version 14.0.2+12-1~20.04