Static initializer in reactor Traces barfs

[dsyer]

I had to add this to make the riff streaming-processor work as a native image:

[
    {
        "name": "reactor.core.publisher.Traces$StackWalkerCallSiteSupplierFactory",
        "allDeclaredConstructors": true
    },
    {
        "name": "reactor.core.publisher.Traces$SharedSecretsCallSiteSupplierFactory",
        "allDeclaredConstructors": true
    },
    {
        "name": "reactor.core.publisher.Traces$ExceptionCallSiteSupplierFactory",
        "allDeclaredConstructors": true
    }
]

[sdeleuze]

Fixed in upgrade_19_3 branch about to be merged in master.