RESTEasy Reactive @Context is empty or not mapping correctly

[JakubWylezek]

Describe the bug

I'm trying to receive context using @context AwsProxyRequestContext or @context AwsProxyRequest.
Thanks to 2.16.2 Final release, resteasy reactive no longer produce 404.
However now context data is missing.

This is my app code:

@GET
@Path("/hello1")
public String hello(@Context AwsProxyRequestContext context) {
    Gson gson = new GsonBuilder().setPrettyPrinting().create();

    log.info("hello1 " + gson.toJson(context));
    return "hello1";
}

@GET
@Path("/hello2")
public String hello2(@Context AwsProxyRequest contex) {
    Gson gson = new GsonBuilder().setPrettyPrinting().create();

    log.info("HEH " + gson.toJson(contex));
    return "hello2";
}

Logs for lambda AWS:
hello1

hello2

Dependencies I use:

implementation 'io.quarkus:quarkus-resteasy-reactive'
implementation 'io.quarkus:quarkus-arc'
implementation 'io.quarkus:quarkus-amazon-lambda-rest'

implementation 'io.quarkiverse.amazonservices:quarkus-amazon-s3:1.6.1'
implementation 'software.amazon.awssdk:netty-nio-client:2.19.22'

testImplementation 'io.quarkus:quarkus-junit5'
testImplementation 'io.rest-assured:rest-assured'
testImplementation 'io.quarkus:quarkus-junit5'
implementation 'com.google.code.gson:gson:2.9.1'

Expected behavior

After I changed dependency from

implementation 'io.quarkus:quarkus-resteasy-reactive'

to

implementation 'io.quarkus:quarkus-resteasy'

also using 2.16.2 Final release version, without any changes in code, context data is filled correctly

Logs from lambda AWS:
hello1

hello2

Actual behavior

No response

How to Reproduce?

No response

Output of uname -a or ver

Linux 5.10.16.3-microsoft-standard-WSL2 #1 SMP Fri Apr 2 22:23:49 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Output of java -version

openjdk version "11.0.17" 2022-10-18 OpenJDK Runtime Environment (build 11.0.17+8-post-Ubuntu-1ubuntu220.04) OpenJDK 64-Bit Server VM (build 11.0.17+8-post-Ubuntu-1ubuntu220.04, mixed mode, sharing)

GraalVM version (if different from Java)

No response

Quarkus version or git rev

No response

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

Gradle 7.5.1 ------------------------------------------------------------ Build time: 2022-08-05 21:17:56 UTC Revision: d1daa0cbf1a0103000b71484e1dbfe096e095918 Kotlin: 1.6.21 Groovy: 3.0.10 Ant: Apache Ant(TM) version 1.10.11 compiled on July 10 2021 JVM: 11.0.18 (Azul Systems, Inc. 11.0.18+10-LTS) OS: Windows 10 10.0 amd64

Additional information

No response

[quarkus-bot]

/cc @FroMage (resteasy-reactive), @Sgitario (resteasy-reactive), @evanchooly (kotlin), @geoand (kotlin,resteasy-reactive), @stuartwdouglas (resteasy-reactive)

[geoand]

This should have been fixed in Quarkus 2.16.2.Final by #30776.

Can you attach a sample application that suffers from the problem?

[Sgitario]

I think that the problem here is that the AwsProxyRequestContext instance in Resteasy Reactive is a proxy of the actual instance. So, the fields of this proxy are null, but when you call any getter, then you will get the correct value.

And gson is only using the fields to generate the JSON, that's why you see it empty.

Instead of using gson, you can use ObjectMapper as:

ObjectMapper objectMapper = new ObjectMapper();
String json = objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(ctx);

And I think you should see all the context now.

[geoand]

Thanks for the analysis @Sgitario.

Closing this as it is not a Quarkus issue

[geoand]

Aside from the correctness issue mentioned by @Sgitario, you probably want to avoid using Gson and instead opt for Jackson because Jackson is already used for deserialization and including another JSON library will do you no favors in terms of runtime footprint.