Attempt to uninstall java on Mac failed

arilwan :

I am willing to run Spark shell on my machine, which is incompatible with my version (java 11), so need to remove and install compatible version (jdk8). Run following commands as specified by oracle:

sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin 
sudo rm -fr /Library/PreferencePanes/JavaControlPanel.prefPane 
sudo rm -fr ~/Library/Application\ Support/Oracle/Java

Commands run, but still java 11 present:

$ java -version
java version "11" 2018-09-25
Java(TM) SE Runtime Environment 18.9 (build 11+28)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11+28, mixed mode)

Not sure what causes this.

Jean-Baptiste Yunès :

This doesn't remove JRE or JDK. If you need to locate all your Java installations just launch the following command:

$ /usr/libexec/java_home -V
Matching Java Virtual Machines (6):
    11.0.1, x86_64: "Java SE 11.0.1"    /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home
    10.0.1, x86_64: "Java SE 10.0.1"    /Library/Java/JavaVirtualMachines/jdk-10.0.1.jdk/Contents/Home
    1.8.0_40, x86_64:   "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home
    1.7.0_11, x86_64:   "Java SE 7" /Library/Java/JavaVirtualMachines/jdk1.7.0_11.jdk/Contents/Home
    1.6.0_37-b06-434, x86_64:   "Java SE 6" /Library/Java/JavaVirtualMachines/1.6.0_37-b06-434.jdk/Contents/Home
    1.6.0_37-b06-434, i386: "Java SE 6" /Library/Java/JavaVirtualMachines/1.6.0_37-b06-434.jdk/Contents/Home