Change it to point to your JDK 8 installation: Example: SetJavaHome C:\Program Files\Java\jdk1.8.0_211
You may also need to check ~/.jdeveloper/12.2.1.4.0/product.conf on Linux/macOS or the AppData equivalent on Windows. 🚀 Installation Best Practices
Navigate to jdeveloper/jdev/bin/jdev.conf . jdeveloper 12.2.1.4 java version
JDeveloper 12.2.1.4 will not launch or will exhibit severe graphical and compiler errors if run on Java versions higher than 8.
To run JDeveloper 12.2.1.4 successfully, you must adhere to these specific versioning guidelines: JDK 1.8.0_191 Change it to point to your JDK 8
64-bit JDK is mandatory for modern operating systems
Since this version of JDeveloper is bundled with Oracle WebLogic Server 12.2.1.4, it inherits the strict JDK 8 requirement of that server runtime. jdeveloper 12.2.1.4 java version
The certified Java version for 🛠️ Core Java Requirements