How to downgrade Java from 9 to 8 on a MACOS. Eclipse is not running with Java 9

Question

How to downgrade Java from 9 to 8 on a macOS Sierra 10.12.6(16G29) . I tried removing the Java plugin and installed Java 8, however the Java and javac version shows 9 in ter

Answer 1

As it allows to install more than one version of java, I had install many 3 versions unknowingly but it was point to latest version "11.0.2"

I could able to solve this issue with below steps to move to "1.8"

$java -version

openjdk version "11.0.2" 2019-01-15 OpenJDK Runtime Environment 18.9 (build 11.0.2+9) OpenJDK 64-Bit Server VM 18.9 (build 11.0.2+9, mixed mode)

cd /Library/Java/JavaVirtualMachines
ls

jdk1.8.0_201.jdk jdk1.8.0_202.jdk openjdk-11.0.2.jdk

sudo rm -rf openjdk-11.0.2.jdk
sudo rm -rf jdk1.8.0_201.jdk
ls

jdk1.8.0_202.jdk

java -version

java version "1.8.0_202-ea" Java(TM) SE Runtime Environment (build 1.8.0_202-ea-b03) Java HotSpot(TM) 64-Bit Server VM (build 25.202-b03, mixed mode)