Modify JDK version in JDeveloper 12.2.1.4

  •  Close any open JDeveloper instance
  • Navigate to “C:\Users\<username>\AppData\Roaming\JDeveloper\12.2.1.4.0” or by typing “%APPDATA%\ JDeveloper\12.2.1.4.0” in file explorer
  • Edit SetJavaHome with the new jdk version in product.conf file

  • Save and close file and open JDeveloper, you should see the new version being reflected now


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