Jdeveloper 12.2.1.4 Java Version Page

Exception in thread "main" java.lang.UnsupportedClassVersionError: oracle/jdeveloper/ide/Starter has been compiled by a more recent version of the Java Runtime (class file version 52.0), this version of the Java Runtime only recognizes class file versions up to 51.0

Cause: Using JDK 7.
Solution: Install JDK 8.

The question "What Java version does JDeveloper 12.2.1.4 use?" has a clear, authoritative answer: JDK 8, specifically updates 151 through 202, with 8u202 being the gold standard. While later JDK 8 updates may work, they are not officially certified and can introduce subtle integration bugs. Avoid JDK 9+ entirely.

By adhering to these Java version requirements, you ensure a stable, productive development environment for ADF, SOA, and WebCenter applications. Always verify your Java version, set JAVA_HOME explicitly, and document the JDK across your team’s development and CI/CD infrastructure.

Last updated: 2025. Oracle product versions and support policies may change. Always refer to the official Oracle JDeveloper Release Notes for the most current certification matrix.

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: jdeveloper 12.2.1.4 java version

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:

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

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. Exception in thread "main" java

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.

To summarize the answer to the keyword "jdeveloper 12.2.1.4 java version":

Using the correct Java version ensures a stable, productive development experience with Oracle ADF and Fusion Middleware projects. Deviating from this will result in classloading errors, missing APIs, and unpredictable IDE behavior.

Before installing or troubleshooting JDeveloper 12.2.1.4, always first verify your Java version:

java -version

If the output does not start with java version "1.8.0_xxx", stop and fix your JDK. Your future self – and your project timeline – will thank you. Cause: Using JDK 7

References:

Last updated: October 2024

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.

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.

Let’s break down exactly which JDKs work, which are marginal, and which are completely unsupported.

| Java Version | Compatible? | Notes | |--------------|-------------|-------| | JDK 7 (all updates) | No | JDeveloper 12.2.1.4 will not launch; requires JDK 8 at minimum. | | JDK 8u45 – 8u111 | Marginal | May launch but lacks stability; missing required security features. | | JDK 8u112 – 8u150 | Partial | Some components (e.g., integrated WebLogic) may fail. | | JDK 8u151 – 8u202 | Yes (Certified) | Fully tested. The sweet spot. 8u202 is the recommended baseline. | | JDK 8u211 – 8u, latest 8u421 | Use with caution | Often works for basic Java SE editing, but ADF/WebLogic integration can be buggy. Oracle Support may reject tickets. | | JDK 9 – JDK 17 | No | The IDE may launch (surprisingly) but will fail to compile ADF projects or deploy to integrated WebLogic. | | JDK 17+ | No | Not designed for Java modules or the new classloaders. |