Jdeveloper 12.2.1.4 Java Version Site
The Definitive Guide to JDeveloper 12.2.1.4: Supported Java Versions, Configuration, and Troubleshooting
Step 5: Verify the JDK Inside JDeveloper
After launching JDeveloper:
- Go to Help → About → Properties.
- Look for
java.version. It should show1.8.0_xxx.
Alternatively, go to Tools → Preferences → Environment and check the Java Version field. jdeveloper 12.2.1.4 java version
Step 2: Install the JDK
Install to a path without spaces (e.g., C:\Java\jdk1.8.0_202 on Windows or /usr/lib/jvm/jdk8u202 on Linux). The Definitive Guide to JDeveloper 12
Q3: My JDeveloper was working, then I updated my JDK. Now it crashes. Why?
A: You likely updated to JDK 11 or higher in your system PATH. Go back to JDK 8 in the JAVA_HOME variable. Also, check the ide.conf file – it might have been overwritten to point to the new JDK. Go to Help → About → Properties
A. The Quick Start (Bundled JDK)
Most developers download the "Generic" or platform-specific installer that includes the JDK.
- If you download the Windows/Linux installer that includes the JDK, the setup is automated.
- The installer will install a private JDK version (usually 1.8.0_xx) inside the JDeveloper middleware home directory. You do not need to pre-install Java.
Installing the Correct JDK for JDeveloper 12.2.1.4
Follow this step-by-step guide to set up the proper Java environment.
