From eeb5eeb84c8160fb74f1c659db2284aa8c08f06f Mon Sep 17 00:00:00 2001
From: Francesco Guardiani <me@slinkydeveloper.com>
Date: Tue, 30 Apr 2024 11:04:09 +0200
Subject: [PATCH] VOID should return null content type (#304)

---
 .../src/main/java/dev/restate/sdk/common/CoreSerdes.java     | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sdk-common/src/main/java/dev/restate/sdk/common/CoreSerdes.java b/sdk-common/src/main/java/dev/restate/sdk/common/CoreSerdes.java
index 6158ec0d..1f84c94b 100644
--- a/sdk-common/src/main/java/dev/restate/sdk/common/CoreSerdes.java
+++ b/sdk-common/src/main/java/dev/restate/sdk/common/CoreSerdes.java
@@ -52,6 +52,11 @@ public Void deserialize(byte[] value) {
         public Void deserialize(ByteString byteString) {
           return null;
         }
+
+        @Override
+        public @Nullable String contentType() {
+          return null;
+        }
       };
 
   /** Pass through {@link Serde} for byte array. */