If JAVA_HOME is not set, you will receive “Environment variable JAVA_HOME not defined”. Otherwise, the current setting will be shown. To set/change JAVA_HOME in Windows: Launch “Control Panel” “System” “Advanced system settings” Switch to “Advanced” tab “Environment variables” Choose “System Variables” (for all users) To add a new environment variable “JAVA_HOME“: Choose “New” In “Variable Name”, enter “JAVA_HOME”. In “Variable Value”, click “Browse Directory…” and navigate to the JDK installed directory (e.g., “C:\Program Files\Java\jdk-13.0.1“). OK ⇒ OK ⇒ OK. To change the existing “JAVA_HOME” setting: Select “JAVA_HOME” ⇒ “Edit” In “Variable Value”, click “Browse Directory…” and navigate to…
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