Define several runtimes for a same version of Java

Is it possible to define several runtimes for a same version of Java in VSCode? I'd like to use the both the Hotspot and OpenJ9 JVM.

My java.configuration.runtimes setting in VSCode looks like this:

"java.configuration.runtimes": [
    {
        "name": "JavaSE-1.8",
        "path": "C:\\Program Files\\Eclipse Foundation\\jdk-8.0.302.8-hotspot"
    },
    {
        "name": "JavaSE-11",
        "path": "C:\\Program Files\\Eclipse Foundation\\jdk-11.0.12.7-hotspot"
    },
    {
        "name": "JavaSE-16",
        "path": "C:\\Program Files\\Eclipse Foundation\\jdk-16.0.2.7-hotspot"
    }
],

I also have other JVMs installed for each of these Java version on my machine. For example one of them is located here: C:\Program Files\Semeru\jdk-8.0.302.8-openj9.

Environment

• Operating System: Windows 10
• Visual Studio Code version: 1.60.0
• Java extension version: 0.81.0

Start by tracing how the Java extension reads and selects entries from the java.configuration.runtimes setting. Check whether multiple entries with the same JavaSE version are currently supported and how a user would choose between HotSpot and OpenJ9. Done means both runtimes can be defined for one version and selected predictably.