// Use the SPI-discovered implementation; falls back to default if none found
JsonSerializer serializer = JsonSerializerProviders.createInstance(true);

// Disable fallback (throws if no provider on classpath)
JsonSerializer strictSerializer = JsonSerializerProviders.createInstance(false);

public final class User {
    private static final JsonSerializer SERIALIZER = JsonSerializerProviders.createInstance(true);

    @JsonProperty public String firstName;
    @JsonProperty public String lastName;

    public static User fromString(String str) {
        return SERIALIZER.deserializeFromBytes(
            str.getBytes(StandardCharsets.UTF_8),
            TypeReference.createInstance(User.class));
    }

    public String toString() {
        return new String(SERIALIZER.serializeToBytes(this), StandardCharsets.UTF_8);
    }
}

JsonSerializer serializer = new JacksonJsonSerializerBuilder()
    .serializer(new ObjectMapper()
        .registerModule(new SimpleModule()
            .addSerializer(User.class, new UserSerializer())
            .addDeserializer(User.class, new UserDeserializer())))
    .build();

// Singleton (preferred for SDK internals)
SerializerAdapter adapter = JacksonAdapter.createDefaultSerializerAdapter();

// New instance (allows customization without affecting the singleton)
SerializerAdapter adapter = new JacksonAdapter();
// Optionally customize: adapter.serializer().configure(...)

@JsonFlatten
class Model {
    @JsonProperty("property.name") private String name = "foo";    // → {"property": {"name": "foo"}}
    @JsonProperty("property\\.escaped") private String esc = "baz"; // → {"property.escaped": "baz"}
}