Jdeveloper 12.2.1.4 Java Version Guide

A frequent question is: "Can I use JDeveloper 12.2.1.4 to write code for Java 11 or Java 17?"

The Answer: Not recommended.

Note: If you need to develop for Jakarta EE / Java EE 8+ or run on Java 11/17, you should look at Oracle JDeveloper 12.2.1.4's successor tools, such as Oracle WebLogic Server 14c or migrating to Apache NetBeans/IntelliJ IDEA combined with WebLogic plugins. jdeveloper 12.2.1.4 java version

With Oracle continuously releasing new versions of JDeveloper (12.2.1.4.0 is replaced by 12.2.1.4.42, and later 14.1.x), you may wonder if you should upgrade. JDeveloper 14.x requires JDK 11 and supports newer ADF features. However, if you must remain on 12.2.1.4 for legacy project compatibility, JDK 8u202 remains your safest, most stable option. A frequent question is: "Can I use JDeveloper 12

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. Note: If you need to develop for Jakarta

A: Yes. Oracle JDeveloper 12.2.1.4 was tested primarily on Oracle JDK 8, but OpenJDK 8 (Adoptium/Temurin, RedHat, Amazon Corretto) generally works. The only potential issue is with Oracle-specific JDBC driver optimizations, which are negligible.