JDeveloper 12.2.1.4 does NOT support JDK 9, JDK 10, JDK 11, JDK 12, JDK 13, JDK 14, JDK 15, JDK 16, JDK 17, or any later Java version. Using these will result in failure.
: Java SE 8 (specifically JDK 8u211+ is recommended).
To configure the Java version in JDeveloper 12.2.1.4, follow these steps: