Version — Jdeveloper 12.2.1.4 Java

Navigate to jdeveloper/jdev/bin/jdev.conf .

A common mistake is attempting to run JDeveloper 12.2.1.4 on Java 11, 17, or 21.

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 jdeveloper 12.2.1.4 java version

Look for the line starting with SetJavaHome .

Change it to point to your JDK 8 installation: Example: SetJavaHome C:\Program Files\Java\jdk1.8.0_211 Navigate to jdeveloper/jdev/bin/jdev

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.

The certified Java version for 🛠️ Core Java Requirements 💡 Summary Table Requirement JDeveloper Version 12

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

Even if your external project targets a newer Java version, the IDE itself must be started using a JDK 8 environment. ⚙️ How to Configure the JDK Path