com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Strange Map type java.util.Map: cannot determine type parameters

[xetra11]

Library Version
4.0.0-alpha.6

Describe the bug
After introspection I ran my Unit Test to see if the deserialization is working. Unfortunately I came over the a jackson-databind exception. Downgrading the jackson databind library to 2.11.1 is not helping.

To Reproduce

• Use jackson-databind 2.11.2

Expected behavior
I'd like it to work :)

Additional Information

The dependencies I use

    implementation(platform("org.springframework.cloud:spring-cloud-dependencies:Hoxton.SR8"))
    implementation(platform("org.springframework.cloud:spring-cloud-gcp-dependencies:1.2.5.RELEASE"))

    implementation("org.springframework.boot:spring-boot-starter-actuator")
    implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
    implementation("io.projectreactor.kotlin:reactor-kotlin-extensions")
    implementation("org.jetbrains.kotlin:kotlin-reflect")
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactor")
    implementation("com.graphql-java-kickstart:graphql-spring-boot-starter:8.0.0")
    implementation("com.expediagroup:graphql-kotlin-spring-client:4.0.0-alpha.6")

Exception:

com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Strange Map type java.util.Map: cannot determine type parameters

I tried to solve this with the mentioned downgrade from: #895

implementation("com.fasterxml.jackson.core:jackson-databind") {
        version {
            strictly("2.11.1")
        }
    }

However this resulted in no mapping happening at all anymore (see my WireMock request stub):

-----------------------------------------------------------------------------------------------------------------------
| Closest stub                                             | Request                                                  |
-----------------------------------------------------------------------------------------------------------------------
                                                           |
POST                                                       | POST
[path] /DG-CODE/graphql                                    | /DG-CODE/graphql
                                                           |
Authorization: JWT-TOKEN                                   |                                                     <<<<< Header is not present
                                                           |
                                                           |
-----------------------------------------------------------------------------------------------------------------------

PS: If there is a better way to unit test the graphql endpoints please let me know!

I am kind of lost in what to do now?

Some extra details to my project:

graphql {
    client {
        allowDeprecatedFields = true
        clientType = GraphQLClientType.WEBCLIENT
        packageName = "com.myapp.network.graphql"
        endpoint = "http://myapp.com/graphql"
    }
}

The logic using the client:

 fun palletProductSearch(distributionGateCode: String): PalletProductSearch.ProductsResponse? {
        val gateUrl = setupDistributionGateUrl(distributionGateCode)
        LOG.info("Executing pallet product query for $gateUrl")
        palletProductSearch = PalletProductSearch(GraphQLWebClient(gateUrl))
        var result: PalletProductSearch.Result? = null
        runBlocking {
            palletProductSearch.execute() {
                header(HttpHeaders.AUTHORIZATION, extractAuthorizationFromRequest())
            }
            val execute = palletProductSearch.execute()
            execute.errors?.forEach { error -> LOG.error(error.message) }
            result = execute.data
        }
        return result?.productsearch
    }

[dariuszkuc]

As was mentioned in #895 and #850 it is an issue with Jackson 2.11.2. You can either downgrade to 2.11.1 or upgrade to 2.11.3.

I am unsure what would be causing your wiremock configuration issue - based on the error it says that your stubbed endpoint requires auth header but your request does not specify it. Check whether extractAuthorizationFromRequest is populating the header.

[xetra11]

Sorry maybe you are right and I screwed up something with WireMock. It just worked beforehand before I started to migrate to GraphQL Kotlin. Sorry for the impatience