How to set JDeveloper JVM version

Can you please let me know how to set JDeveloper JVM version?

I'm going to assume you mean you want to "compile against"?
in menu ->Application->progject properties -> Compiler->use custom settings->customer setting->change JDK Version Compatability by selecting the source and class files to be used and generated respectively.
use "Helpful" or "Correct" to give points, else let us know you need some more help

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How to set JDeveloper JVM version

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