For Oracle JDeveloper 12.2.1.4 , the officially supported Java version is . Specifically, it requires a minimum of JDK 1.8.0_211
or later updates within the Java 8 family. Java versions 9 and above (including Java 11 and 17) are not supported for this specific release. Oracle Help Center Installation Guide for JDeveloper 12.2.1.4
Follow these steps to set up the environment and install the software: Prepare the Java Development Kit (JDK) Download and install Oracle JDK 1.8.0_211 or a higher update of JDK 8.
environment variable to point to your JDK installation directory. Verify the installation by running java -version
in your command prompt to ensure it returns a version starting with Download JDeveloper 12.2.1.4.0 Oracle JDeveloper Downloads Choose the Studio Edition for the full suite of features (ADF, WebLogic, SOA) or the Java Edition for core Java and XML features only. Run the Installer Studio Edition : Open a command prompt with Administrator privileges . Navigate to your JDK's folder and run the installer using the command: java -jar [path_to_installer_jar] Java Edition : This version is usually a
file. Simply extract the contents to your desired directory; no formal installation wizard is required. Configure Post-Installation Upon first launch, JDeveloper will ask for the path to your if it wasn't automatically detected. If you need to manually change the JDK later, locate the product.conf file (typically found in AppData\Roaming\JDeveloper\12.2.1.4.0\ ) and update the SetJavaHome Verify Setup Open JDeveloper and go to Help > About Select the
tab to confirm that the IDE is running on the correct JDK 1.8.0 version. for this JDeveloper version? Oracle JDeveloper Software
Oracle JDeveloper Java Edition 12.2. ... This download contains only the core Java and XML features, it doesn't contain J2EE, ADF, Installing Oracle JDeveloper
Page 3 * Audience. vii. Documentation Accessibility. vii. Diversity and Inclusion. vii. Related Documents. vii. Conventions. viii. Oracle Help Center Oracle JDeveloper Software | Oracle APAC
Understanding JDeveloper 12.2.1.4 Java Version Compatibility jdeveloper 12.2.1.4 java version
For developers working with Oracle JDeveloper 12c (12.2.1.4.0), selecting and configuring the correct Java version is the most critical step for a stable development environment. This version of JDeveloper is built on the Oracle Fusion Middleware 12c platform and has specific, strict requirements for the Java SE Development Kit (JDK). Required Java Version for JDeveloper 12.2.1.4
The certified and recommended Java version for JDeveloper 12.2.1.4.0 is Oracle JDK 8 (1.8.0). Minimum Version: Oracle JDK 1.8.0_191 or higher.
Commonly Recommended Version: JDK 1.8.0_211 or newer within the Java 8 family is frequently cited in official installation guides.
Architecture: You must use a 64-bit JDK for 64-bit operating systems to ensure compatibility with the JDeveloper Studio installer.
Important Compatibility Note: 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
Unlike modern IDEs that bundle their own runtime, JDeveloper 12.2.1.4 requires a pre-installed, certified JDK to run its installer and the IDE. Using an unsupported version like Java 11 or 17 often results in: System Requirements and Specifications - Oracle Help Center
Oracle JDeveloper 12.2.1.4.0 is certified for and requires (specifically version 1.8.0_211 or higher Oracle Help Center Key Version & Requirement Details Certified JDK: At publication, the specific certified version was jdk1.8.0_211 Operating System Support: It is typically used on
systems (Windows, Linux, macOS) and requires the 64-bit version of the JDK. Java Limits:
The IDE is supported with a minimum of Java 1.8 and a maximum version less than 1.9 for the development environment itself. Note on Java 17: For Oracle JDeveloper 12
While Oracle Forms 12.2.1.4 has added limited support for Java 17 (specifically for the Standalone Launcher), the JDeveloper 12.2.1.4 IDE itself remains primarily a Java 8-based product. Stack Overflow How to Check Your Current Version
If you already have JDeveloper installed and want to verify which Java version it is using: JDeveloper menu and select Click on the Properties Look for the java.version entry to see the exact JDK being utilized. Oracle Forums Changing the JDK Location
If you need to point JDeveloper to a different Java 8 installation, you can modify the product.conf JDeveloper 12c 12.2.1.4.0 jdk - Oracle Forums
The certified Java version for Oracle JDeveloper 12.2.1.4.0 is JDK 1.8.0_211 or higher. This version of JDeveloper is part of the Oracle Fusion Middleware 12c (12.2.1.4.0) release and requires a 64-bit Java Development Kit (JDK) to run the Studio Edition installer. 🛠️ Key Java Requirements Recommended Version: Java SE 8 (JDK 1.8.0_211 or later).
Architecture: 64-bit JDK is mandatory for 64-bit operating systems. Distribution Types:
Studio Edition: Requires a pre-installed certified JDK to run the generic installer.
Java Edition: A smaller version in .zip format for pure Java development; it may come bundled with a JDK or require a manual path setting. ⚙️ How to Check or Change the JDK
Verify Current Version: Run java -version from your command line before starting the installation.
Check Inside JDeveloper: Go to Help > About and select the Version tab to see the JDK currently in use. Update JDK Location: but OpenJDK 8 (Adoptium/Temurin
Edit the jdev.conf file found in JDeveloper\jdeveloper\jdev\bin.
Modify the line SetJavaHome to point to your new JDK directory.
Alternatively, edit product.conf located in your user home directory (e.g., $HOME/.jdeveloper/12.2.1.4.0/). ⚠️ Important Installation Notes
JDeveloper 12.2.1.4. - Doesn't shut down Integrated WebLogic Server
Oracle ADF, the core framework of JDeveloper, relies heavily on internal JDK APIs that were deprecated and removed in JDK 9 and later. For example, ADF’s binding layer and the Oracle XML parser use com.sun.* and sun.* packages. These packages are no longer accessible in modular JDKs without specific command-line flags, and even with flags, stability is not guaranteed.
Use Oracle JDK 8 for running JDeveloper 12.2.1.4 and compile targets set to Java 8. Align development and deployment JDKs, keep Java 8 patched, and follow the configuration and troubleshooting steps herein to avoid common issues.
If you want, I can:
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.
| Symptom | Root cause | |----------------------------------------------|--------------------------------| | IDE fails to start with “Java version mismatch” | Running JDK 11+ | | ADF Faces design time exceptions | Compiler compliance > 8 | | WebLogic integration grayed out | Default JDK not JDK 8 |