Update JDK for integrated weblogic present in Jdev-11.7

Modify the setDomainEnv.cmd (Windows) or setDomainEnv.sh (Linux) of the DefaultDomain for the Integrated WebLogic Server. This file is located in the following path:

Windows:

"%APPDATA%\JDeveloper\system11.1.1.x.xx.xx.xx\DefaultDomain\bin"

Linux:

~/.jdeveloper/system11.1.1.x.xx.xx.xx/DefaultDomain/bin


Remember: 
The DefaultDomain is created when an application is run for the first time in JDeveloper.  If no application has been run yet and the JDeveloper installation is new, the DefaultDomain will not exist.



Go to the path specified above, depending on your OS.
Edit setDomainEnv.cmd or setDomainEnv.sh
Look for the following lines:
SUN_JAVA_HOME="C:\oracle\jdev111130\jdk160_18"
JAVA_HOME="C:\oracle\jdev111130\jdk160_18"


Path and the JDK folder name specified in these environment variables may differ between JDeveloper 11g versions.
Change the values/paths of SUN_JAVA_HOME and JAVA_HOME to the one where the new/different JDK is located. This is the path where the bin folder where the java exe is located.

Save file and restart/run JDeveloper.