Error with java.home

I am new to VSS, and I am basically trying to run the code: ./gradlew genSource, but the error: “The supplied javaHome seems to be invalid. I cannot find the java executable. Tried location: C:\Users\jxsta\Downloads\Java\New folder\bin\java.exe” comes up, I honestly don’t know what to do, I’ve tried uninstalling and reinstalling but on luck. Any help and please be a simple as possible (like I said I am new)
Heres a pic for reference:

Have you installed a Java Development Kit (JDK) and set your JAVA_HOME environment variable? If not, you should do so. One such approach is to use the AdoptOpenJDK installer, which has the option to configure JAVA_HOME for you.