How can I set the Java runtime version to JDK 8 for a specific project?

[provide a description of the issue]

Environment

• Operating System: macOS Catalina 10.15.6
• JDK version: 14.0.2 but I want to run my program with 1.8.0_221
• Visual Studio Code version: 1.47.3
• Java extension version: 0.65.0

Steps To Reproduce

1. [step 1]
2. [step 2]

[Please attach a sample project reproducing the error]
Please attach logs

Current Result

Expected Result

Additional Informations

I was wondering if there was a way to make a single project run java programs using JDK 8. I have already put this specific JDK in java.configuration.runtimes but I am not seeing the status bar icon to change the Java Language Level. I have gotten it to work by setting default to true for the JDK I want to use in java.configuraiton.runtimes but I was wondering if there was a way to do this that didn't involve changing my settings for all projects.

Start by reviewing the per-project behavior of java.configuration.runtimes and the Java Language Level status bar control described in the issue. Confirm whether a project-specific JDK 8 selection is supported in Visual Studio Code 1.47.3 with Java extension 0.65.0; done means documenting the supported setting or identifying the missing capability.