JDeveloper 12.2.1.4 will not launch or will exhibit severe graphical and compiler errors if run on Java versions higher than 8.
The latest update of JDK 8 (e.g., JDK 1.8.0_211 or later)
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 jdeveloper 12.2.1.4 java version
Navigate to jdeveloper/jdev/bin/jdev.conf .
To run JDeveloper 12.2.1.4 successfully, you must adhere to these specific versioning guidelines: JDK 1.8.0_191 JDeveloper 12
Always refer to the Oracle Fusion Middleware Supported System Configurations document for the most up-to-date micro-version certifications. 💡 Summary Table Requirement JDeveloper Version 12.2.1.4.0 Supported Java JDK 8 (1.8) Bit Version Primary Installer Generic Jar Target Runtime WebLogic 12.2.1.4 AI responses may include mistakes. Learn more
Ensure JDK 8 is installed and the JAVA_HOME environment variable is set before running the JDeveloper .jar installer. To run JDeveloper 12
For 64-bit systems, use the generic installer ( V982638-01.zip or similar) and run it via the command line using the JDK 8 java -jar command.
Change it to point to your JDK 8 installation: Example: SetJavaHome C:\Program Files\Java\jdk1.8.0_211