JDeveloper 12.2.1.4 is not certified to run on Java 9, 10, 12, or higher versions for its core IDE operations. While some related components like the Forms Standalone Launcher might support Java 11 or 17 in specific runtime scenarios, the JDeveloper IDE itself must be started with a certified JDK 8. Why JDK 8 is Mandatory
"Compiling with a different JDK version and running with a different one is causing the error. Use JDK 8 for both."
Java 9 and subsequent releases deprecated and removed standard Java EE modules (like JAX-WS, JAXB, and JTA) from the core JDK. JDeveloper 12c relies heavily on these internal APIs.
To successfully install and run JDeveloper 12.2.1.4, follow this environment setup checklist. 1. Download the Correct JDK Visit the Oracle Java SE 8 Downloads page. Download the or Linux x64 JDK installer. jdeveloper 12.2.1.4 java version
"JDeveloper currently supports JDK 8 in its version 12.2.1.4, leaving aside support for JDK 11, 17, 19 or 21, until a future update."
: JDeveloper includes an embedded version of Oracle WebLogic Server 12c for local testing. This embedded server still requires JDK 8 for proper operation, regardless of which JDK the IDE itself is using. Deployments will continue to use JDK 8.
Expected output snippet:
or higher (64-bit) was the designated certified version for this Fusion Middleware 12c update. Oracle Help Center Key Java Requirements Java SE 8 (also referred to as 1.8). Java SE JDK
Download the generic installer (e.g., jdevstudio12214.jar ). Run it with:
is forms 12.2.1.4 compatible with java beyond 8u261 like 8u271 JDeveloper 12
This article should have clarified any confusion regarding and its relationship with Java. While the restriction to JDK 8 may seem limiting, it provides a stable, predictable platform for enterprise Oracle ADF and Fusion Middleware development. When future releases arrive, they will gradually incorporate support for JDK 11, 17, and beyond, but for now, JDK 8 remains the reliable standard.
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.