Jdeveloper 12.2.1.4 Java Version Link ❲OFFICIAL❳

Do not be tempted to use JDK 8u331 or 8u421 – while they might launch, Oracle Support will ask you to reproduce on 8u202 before accepting any bug reports.

JDK 1.8.0_211 and higher within the Java 8 family is recommended. jdeveloper 12.2.1.4 java version

There are two ways to install JDeveloper, and both revolve around JDK 8: Do not be tempted to use JDK 8u331