"Java live reload unavailable" after upgrade to 14.6.0

I'm using Gradle with Spring Boot in IntelliJ, and I had included -XX:HotswapAgent=fatjar in my IntelliJ's run configuration. But I didn't respect that bootRun is forking a new JVM! Don't know the coherence to the Vaadin upgrade, but at least it's working now for me after adding -XX:HotswapAgent=fatjar to the bootRun configuration.

In order to not force other developers to use TravaOpenJDK, I'm using this in my build.gradle:

def isUsingTravaOpenJDK() {
    // Vendor is AdoptOpenJDK, therefore we identify Trava by its version number:
    def knownTravaVersions = ["11.0.9+2-202011221400"]
    def currentJVM = System.getProperty("java.vm.version")
    return knownTravaVersions.contains(currentJVM)
}

bootRun {
    if (isUsingTravaOpenJDK()) {
        jvmArgs("-XX:HotswapAgent=fatjar")
    }
}

It's currently not possible to use java[.vm].vendor to determine if Trava is used:

java -XshowSettings:properties -version
Property settings:
    [...]
    java.vendor = AdoptOpenJDK
    java.vendor.url = https://adoptopenjdk.net/
    java.vendor.url.bug = https://github.com/AdoptOpenJDK/openjdk-support/issues
    java.vendor.version = AdoptOpenJDK
    java.version = 11.0.9
    java.version.date = 2020-10-20
    [...]
    java.vm.vendor = AdoptOpenJDK
    java.vm.version = 11.0.9+2-202011221400