I have a Jenkins Slave (A Windows PC) which has the JAVA_HOME
environment variable. I updated the Java version on the Slave so I also updated the Environment Va
Hudson/Jenkins does not use the slave environment variables as it supports multiple java versions so you configure the java home environment variables in the GUI.
What you need to do is go to Manage Hudson/Jenkins then choose Manage Nodes. Choose the Node you want to configure from the list and then choose Configure. Down the bottom there's a Node Properties section. Check the Tool Locations checkbox. Click on Add then Select your JDK in the dropdown list and add the new path to it.