Jdeveloper 12.2.1.4 Java Version Today

If you are in a hurry, here is the essential takeaway:

Critical Note: Even though newer JDK 8 updates (like 8u301, 8u321, etc.) may seem to work, Oracle only certifies up to specific update levels for this IDE. Deviations can cause issues with built-in Maven, version control integrations, and ADF BC (Business Components).

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

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. If you are in a hurry, here is the essential takeaway:

java.lang.IllegalAccessError: class oracle.adf.share.security.ADFSecurityManager (in unnamed module) cannot access class sun.security.action.GetPropertyAction (in module java.base)

Cause: Using JDK 11. The internal API is now encapsulated.
Solution: Switch to JDK 8.

Oracle JDeveloper is a free, integrated development environment (IDE) favored by enterprise Java developers, particularly those working within the Oracle ecosystem—building ADF (Application Development Framework) applications, SOA composites, and WebCenter portals. With the release of JDeveloper 12.2.1.4, many developers and DevOps engineers find themselves asking a critical question: What is the correct Java version for JDeveloper 12.2.1.4? Critical Note: Even though newer JDK 8 updates

Getting the Java version right is not a trivial detail. Using an unsupported JDK can lead to cryptic compilation errors, IDE crashes, deployment failures on WebLogic Server, or security vulnerabilities. This article provides a definitive, in-depth look at the Java version requirements for JDeveloper 12.2.1.4, covering installation, configuration, and troubleshooting.

If you have JDK 11 also installed system-wide, Maven (embedded in JDeveloper) may pick the wrong version. Fix by setting the JAVA_HOME inside JDeveloper: