Serializer not called on List Elements

[mdoy179]

Describe the bug
In version 3.0.3 of yasson, the elements of a list do not have their Serializers called. This issue does not happen in version 2.0.4.

In the following example, if a List<Temp> is serialized, the serializer will not throw the exception (or be called). If Temp is serialized by itself, the serializer will be called.:

@JsonbTypeSerializer(Temp.Serializer.class)
public class Temp {

    private List<UUID> vals;

    public List<UUID> getVals() {
        return vals;
    }

    public Temp(List<UUID> vals) {
        this.vals = vals;
    }

    public static class Serializer implements JsonbSerializer<Temp> {

        @Override
        public void serialize(Temp obj, JsonGenerator generator, SerializationContext ctx) {
            throw new UnsupportedOperationException("Unimplemented method 'serialize'");
        }

    }

}

To Reproduce
Included sample app with unit tests to replicate the problem.
yasson-bug-sample.zip

Expected behavior
Expected that a list would be serialized.

System information:

• OS: Windows
• Java Version: 17
• Yasson Version: 3.0.3

Additional context
N/A

[mdoy179]

This issue seems related to this issue that was closed: #587. I'm wondering if serialization was not fixed?

[mdoy179]

Was able to get a workaround working by using jsonbConfig. If you update the ExampleTests.java to pass in a jsonbConfig then it will work. Something like this:

    @BeforeEach
    void setup() {
        myClass = new MyClass("test");
        JsonbConfig jsonbConfig = new JsonbConfig();
        
        var serializer = new JsonbSerializer[]{
            new MyClass.Serializer()
        };
        jsonbConfig.withSerializers(serializer);
        
        jsonb = JsonbBuilder.create(jsonbConfig);
    }