Jdeveloper 12.2.1.4 Java Version May 2026

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.

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

Navigate to jdeveloper/jdev/bin/jdev.conf . jdeveloper 12.2.1.4 java version

Look for the line starting with SetJavaHome .

The certified Java version for 🛠️ Core Java Requirements For 64-bit systems, use the generic installer ( V982638-01

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

If you have multiple versions of Java installed, you may need to manually point JDeveloper to the correct JDK 8 path. Look for the line starting with SetJavaHome

The latest update of JDK 8 (e.g., JDK 1.8.0_211 or later)

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