java version "1.8.0_202" Java(TM) SE Runtime Environment (build 1.8.0_202-b08) Java HotSpot(TM) 64-Bit Server VM (build 25.202-b08, mixed mode) Navigate to jdeveloper/jdeveloper.exe (Windows) or ./jdeveloper (Linux/macOS). The IDE will automatically detect JAVA_HOME . If not, you can force it by editing jdeveloper.conf :
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. jdeveloper 12.2.1.4 java version
Edit <JDEV_USER_HOME>/system12.2.1.4.42/DefaultDomain/bin/setDomainEnv.cmd and add: java version "1