Jdeveloper 12.2.1.4 Java Version Guide

Standard Oracle JDK (OpenJDK is generally not supported for the installer) ⚠️ The Java 9+ Compatibility Gap

64-bit JDK is mandatory for modern operating systems

JDeveloper 12.2.1.4 will not launch or will exhibit severe graphical and compiler errors if run on Java versions higher than 8. jdeveloper 12.2.1.4 java version

Oracle JDeveloper 12.2.1.4 is the final and most stable release of the 12c family. Because JDeveloper is an Integrated Development Environment (IDE) that also includes an embedded WebLogic Server, matching it with the correct Java Development Kit (JDK) version is critical for stability, performance, and successful deployment.

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 Standard Oracle JDK (OpenJDK is generally not supported

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.

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 You may also need to check ~/

If you have multiple versions of Java installed, you may need to manually point JDeveloper to the correct JDK 8 path.