Easy and fast interactive map creator.
Easily create objects, add photos and a description.
Add your objects to categories, which will allow browsing through an inbuilt menu system on your map.
Sharing your map is as simple as embedding it into your website.
Always verify your jdeveloper.conf and project compiler settings to avoid cryptic build or runtime mismatches. Last verified: Q2 2025. Based on Oracle product documentation and real-world usage.
Introduction Oracle JDeveloper 12c (12.2.1.4.0) is a stable, widely-used integrated development environment for building Oracle Fusion Middleware applications, ADF (Application Development Framework), and general Java EE applications. A common point of confusion for developers is the correct Java version required to install, run, and compile projects with this specific IDE release.
If you attempt to set SetJavaHome to a JDK 11 path, the IDE will fail to start with cryptic module or classpath errors. Error 1: "This application requires Java 8" Cause: Your JAVA_HOME points to a different JDK version. jdeveloper 12.2.1.4 java version
Explicitly set SetJavaHome in jdeveloper.conf to a JDK 8 path. Error 2: Compilation errors with Java 8 features (lambdas, etc.) Cause: Project compiler level is set to 1.7.
Edit the jdeveloper.conf file (located in ide/bin or the domain home) and set: Always verify your jdeveloper
SetJavaHome C:\path\to\jdk1.8.0_421 Or launch from command line:
This flexibility means you can write Java 8 code (lambdas, streams, new date API) but still generate Java 7 bytecode if needed. If you are developing ADF applications, the deployment target WebLogic Server dictates your Java version: Introduction Oracle JDeveloper 12c (12
| WebLogic Version | Compatible Java | Notes | |----------------|----------------|-------| | WebLogic 12.2.1.4 | JDK 8 only | Ideal match | | WebLogic 12.2.1.3 | JDK 8 only | Minor differences | | WebLogic 12.1.3 | JDK 7 or JDK 8 | Set project compiler to 1.7 for safety |
Go to Project Properties > Compiler and change Source Compatibility to 1.8 . Error 3: "Unsupported major.minor version 52.0" at runtime Cause: Your application was compiled with Java 8 (version 52) but deployed to a Java 7 runtime.
Use WebLogic 12.2.1.4 with JDK 8 for full compatibility with JDeveloper 12.2.1.4. 4. What About JDK 11, 17, or 21? No. JDeveloper 12.2.1.4 cannot be launched using JDK 11 or later. Oracle introduced official JDK 11 support starting from JDeveloper 12.2.1.5 (and fully with 12.2.1.6+).
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