Field Name Collision and incorrect Binding of Boolean Fields When Using isX in a data class

[moalshak]

Describe the bug

In the swagger-ui schema generated for the /test/b endpoint, both isBoolean and boolean fields appear in the schema, even though only isBoolean should be present. This can cause confusion and unexpected behavior, such as setting one field inadvertently setting the other.

Expected behavior

Only isBoolean should be present

Actual behavior

The boolean field appears out of nowhere

How to Reproduce?

1. Make a new project
2. Create a Resource
3. Create a datacalss with a boolean field with the name isSomething
4. Run the application
5. Visit the swagger UI

import com.fasterxml.jackson.annotation.JsonProperty
import jakarta.ws.rs.Consumes
import jakarta.ws.rs.GET
import jakarta.ws.rs.POST
import jakarta.ws.rs.Path
import jakarta.ws.rs.Produces
import jakarta.ws.rs.core.MediaType

@Path("/test")
class ExampleResource {

    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.TEXT_PLAIN)
    @Path("/a")
    fun a(isBoolean: Boolean): String {
        return isBoolean.toString()
    }

    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.TEXT_PLAIN)
    @Path("/b")
    fun b(isBoolean: IsBooleanDataClass): String {
        return isBoolean.toString()
    }

    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.TEXT_PLAIN)
    @Path("/c")
    fun c(boolean: BooleanDataClass): String {
        return boolean.toString()
    }
}

data class IsBooleanDataClass(
    @JsonProperty("isBoolean")
    val isBoolean: Boolean)
data class BooleanDataClass(
    @JsonProperty("boolean")
    val boolean: Boolean)

Output of uname -a or ver

Ubuntu

Output of java -version

17

Quarkus version or git rev

3.12.3

Build tool (ie. output of mvnw --version or gradlew --version)

8.9

Additional information

No response

[quarkus-bot]

/cc @MikeEdgar (swagger-ui), @phillip-kruger (swagger-ui)

[phillip-kruger]

Thanks @MikeEdgar !