Streaming data from a RestEasy classic JAXRS method

[franck102]

Hi all,

I am trying to stream the content of a file back to the REST client, in a RestEasy method. At this point I am not worrying about blocking the I/O thread, I read this GitHub issue:
#28385

... but I can't make this work: RestEasy insists on trying to have Jackson serialize the response entity.

I have tried returning an InputStream as the entity, I tried StreamingOutput (below) with and without a StreamingOutputMessageBodyWriter registered, and I always get the Jackson error below... am I missing something obvious?

    @Path("export/{requestId}/data")
    @GET
    @Produces("application/octet-stream")
    public Response getData(@PathParam("requestId") String requestId)
    {
        return Response.ok(_exportService.getExportData(requestId), "application/octet-stream")
            .header("Content-Disposition", "attachment")
            .build();
    }

_exportService.getExportData returns a proper StreamingOutput, however RestEasy is trying to serialize the entity and I get this 500 error... am I missing something obvious?

com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class com.easypass.booking.service.ExportService$PathStreamingOutput

I am using these dependencies:

 io.quarkus:quarkus-resteasy-reactive-jackson:jar:3.0.4.Final:compile -- module quarkus.resteasy.reactive.jackson (auto)
[INFO]    io.quarkus:quarkus-resteasy-reactive:jar:3.0.4.Final:compile -- module quarkus.resteasy.reactive (auto)
[INFO]    io.quarkus:quarkus-resteasy-reactive-common:jar:3.0.4.Final:compile -- module quarkus.resteasy.reactive.common (auto)
[INFO]    io.quarkus.resteasy.reactive:resteasy-reactive-common:jar:3.0.4.Final:compile -- module resteasy.reactive.common (auto)
[INFO]    io.quarkus.resteasy.reactive:resteasy-reactive-common-types:jar:3.0.4.Final:compile -- module resteasy.reactive.common.types (auto)
[INFO]    io.quarkus.resteasy.reactive:resteasy-reactive-vertx:jar:3.0.4.Final:compile -- module resteasy.reactive.vertx (auto)
[INFO]    io.quarkus.resteasy.reactive:resteasy-reactive:jar:3.0.4.Final:compile -- module resteasy.reactive (auto)
[INFO]    jakarta.ws.rs:jakarta.ws.rs-api:jar:3.1.0:compile -- module jakarta.ws.rs
[INFO]    jakarta.xml.bind:jakarta.xml.bind-api:jar:4.0.0:compile -- module jakarta.xml.bind
[INFO]    jakarta.activation:jakarta.activation-api:jar:2.1.1:compile -- module jakarta.activation
[INFO]    io.quarkus:quarkus-resteasy-reactive-jackson-common:jar:3.0.4.Final:compile -- module quarkus.resteasy.reactive.jackson.common (auto)
[INFO]    io.quarkus.resteasy.reactive:resteasy-reactive-jackson:jar:3.0.4.Final:compile -- module resteasy.reactive.jackson (auto)

[franck102]

Ooops, my mistake, a custom request logging filter was causing this :(

Franck