Another change to the Serde interface

Author: slinkydeveloper

common/src/main/java/dev/restate/serde/Serde.java

@@ -25,9 +25,9 @@
  *
  * @see SerdeFactory
  */
-public interface Serde<T> extends TypeTag<T> {
+public interface Serde<T extends @Nullable Object> extends TypeTag<T> {
 
-  Slice serialize(@Nullable T value);
+  Slice serialize(T value);
 
   T deserialize(@NonNull Slice value);
 

sdk-spring-boot-kotlin-starter/src/test/kotlin/dev/restate/sdk/springboot/kotlin/RestateHttpEndpointBeanTest.kt

@@ -55,7 +55,7 @@ class RestateHttpEndpointBeanTest {
             .readValue<EndpointManifestSchema>(response.body(), EndpointManifestSchema::class.java)
 
     Assertions.assertThat<Service?>(endpointManifest.services)
-        .map<String>({ it.name })
+        .map<String> { it?.name }
         .containsOnly("greeter")
   }
 }