@Fallback's include and exclude parameters are not honoured when fallback happens

[prabalpsr]

Expected Behavior

if the exclude exception list is provided with the fallback annotation, the fallack should not be triggered is the excluded exception occurs. The vice versa should happen for included exception list.

Actual Behaviour

We are using @recoverable and @fallback combination with declarative http client that returns a Publisher. We want fallback to be triggered for all >=4xx HttpClientResponseException except when we encounter a 404 (not found) or 400 (bad request).

Even when we exclude all HttpClientResponseExceptions, the fallback is getting triggered for all HttpResponses.

Please refer to #7153 for more details. This is a draft PR raised some couple of years back but never merged.

Steps To Reproduce

Setup a declarative HttpClient like

@Client( id = "123")
interface TestClient{
    @Get
    @Produces(APPLICATION_JSON)
    @Consumes(APPLICATION_JSON)
    @Recoverable
    fun getTestData():Publisher<HttpResponse<TestData>>
}

Add a fallback client that extends the same

@Client(id = 123_FALLBACK)
interface TestClientFallback : TestClient {
    @Get
    @Produces(APPLICATION_JSON)
    @Consumes(APPLICATION_JSON)
    @Fallback(excludes = [HttpClientResponseException::class])
    override fun getTestData():Publisher<HttpResponse<TestData>>
}

Environment Information

Mac OS: 14.6.1
JDK: 17

Example Application

No response

Version

Micronaut version 4.6.3

[prabalpsr]

@timyates, @yawkat - can you please look at this or suggest any workarounds. We are currently stuck with making additional calls to our fallback.