Encoders/Decoders are ignored

[micheljung]

When implementing a class like this:

public class UuidDecoder implements Decoder.Text<UUID> {
    public UuidDecoder() {
        System.out.println("OK!");
    }

    @Override
    public void init(EndpointConfig config) {

    }

    @Override
    public void destroy() {

    }

    @Override
    public UUID decode(String s) throws DecodeException {
        return UUID.fromString(s);
    }

    @Override
    public boolean willDecode(String s) {
        try {
            UUID.fromString(s);
            return true;
        } catch (IllegalArgumentException e) {
            return false;
        }
    }
}

And using it like this:

@ServerEndpoint(value = "/api/ws/search/{id}", decoders = UuidDecoder.class)
public class SearchResource {
}

The decoder isn't registered and the application fails with:

14:14:58,113 ERROR [io.qua.dev.DevModeMain] Failed to start Quarkus: java.lang.ExceptionInInitializerError
    at java.base/java.lang.J9VMInternals.ensureError(J9VMInternals.java:193)
    at java.base/java.lang.J9VMInternals.recordInitializationFailure(J9VMInternals.java:182)
    at java.base/java.lang.Class.forNameImpl(Native Method)
    at java.base/java.lang.Class.forName(Class.java:417)
    at io.quarkus.runner.RuntimeRunner.run(RuntimeRunner.java:153)
    at io.quarkus.dev.DevModeMain.doStart(DevModeMain.java:178)
    at io.quarkus.dev.DevModeMain.start(DevModeMain.java:96)
    at io.quarkus.dev.DevModeMain.main(DevModeMain.java:67)
Caused by: java.lang.RuntimeException: Failed to start quarkus
    at io.quarkus.runner.ApplicationImpl.<clinit>(ApplicationImpl.zig:390)
    ... 6 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: javax.websocket.DeploymentException: UT003028: Could not find decoder for type class java.util.UUID on method public void org.siretch.kafka.entrypoint.SearchResource.onOpen(javax.websocket.Session,java.util.UUID)
    at io.quarkus.undertow.runtime.UndertowDeploymentRecorder.bootServletContainer(UndertowDeploymentRecorder.java:445)
    at io.quarkus.deployment.steps.UndertowBuildStep$build32.deploy_0(UndertowBuildStep$build32.zig:171)
    at io.quarkus.deployment.steps.UndertowBuildStep$build32.deploy(UndertowBuildStep$build32.zig:196)
    at io.quarkus.runner.ApplicationImpl.<clinit>(ApplicationImpl.zig:376)
    ... 6 more
Caused by: java.lang.RuntimeException: javax.websocket.DeploymentException: UT003028: Could not find decoder for type class java.util.UUID on method public void org.siretch.kafka.entrypoint.SearchResource.onOpen(javax.websocket.Session,java.util.UUID)
    at io.undertow.websockets.jsr.Bootstrap.handleDeployment(Bootstrap.java:101)
    at io.undertow.servlet.core.DeploymentManagerImpl.handleExtensions(DeploymentManagerImpl.java:278)
    at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:155)
    at io.quarkus.undertow.runtime.UndertowDeploymentRecorder.bootServletContainer(UndertowDeploymentRecorder.java:434)
    ... 9 more
Caused by: javax.websocket.DeploymentException: UT003028: Could not find decoder for type class java.util.UUID on method public void org.siretch.kafka.entrypoint.SearchResource.onOpen(javax.websocket.Session,java.util.UUID)
    at io.undertow.websockets.jsr.annotated.AnnotatedEndpointFactory$BoundPathParameters.<init>(AnnotatedEndpointFactory.java:399)
    at io.undertow.websockets.jsr.annotated.AnnotatedEndpointFactory.createBoundPathParameters(AnnotatedEndpointFactory.java:258)
    at io.undertow.websockets.jsr.annotated.AnnotatedEndpointFactory.create(AnnotatedEndpointFactory.java:100)
    at io.undertow.websockets.jsr.ServerWebSocketContainer.addEndpointInternal(ServerWebSocketContainer.java:681)
    at io.undertow.websockets.jsr.ServerWebSocketContainer.addEndpoint(ServerWebSocketContainer.java:654)
    at io.undertow.websockets.jsr.Bootstrap.handleDeployment(Bootstrap.java:95)
    ... 12 more

See https://stackoverflow.com/questions/60134388/how-to-use-custom-encoder-and-decoder-in-quarkus

I'll submit a PR to fix this.