Fixed FromEdgeSyncResponse in ProtoUtils

application/src/main/java/org/thingsboard/server/service/edge/rpc/EdgeGrpcService.java

@@ -292,7 +292,7 @@ public class EdgeGrpcService extends EdgeRpcServiceGrpc.EdgeRpcServiceImplBase i
                 session.startSyncProcess(true);
                 success = true;
             }
-            clusterService.pushEdgeSyncResponseToCore(new FromEdgeSyncResponse(requestId, tenantId, edgeId, success, null));
+            clusterService.pushEdgeSyncResponseToCore(new FromEdgeSyncResponse(requestId, tenantId, edgeId, success, ""));
         }
     }
 

common/proto/src/main/java/org/thingsboard/server/common/util/ProtoUtils.java

@@ -159,6 +159,7 @@ public class ProtoUtils {
                 .setEdgeIdMSB(response.getEdgeId().getId().getMostSignificantBits())
                 .setEdgeIdLSB(response.getEdgeId().getId().getLeastSignificantBits())
                 .setSuccess(response.isSuccess())
+                .setError(response.getError())
                 .build();
     }
 

common/proto/src/test/java/org/thingsboard/server/common/util/ProtoUtilsTest.java

@@ -124,7 +124,7 @@ class ProtoUtilsTest {
 
     @Test
     void protoFromEdgeSyncResponseSerialization() {
-        FromEdgeSyncResponse msg = new FromEdgeSyncResponse(id, tenantId, edgeId, true, null);
+        FromEdgeSyncResponse msg = new FromEdgeSyncResponse(id, tenantId, edgeId, true, "Error Msg");
         assertThat(ProtoUtils.fromProto(ProtoUtils.toProto(msg))).as("deserialized").isEqualTo(msg);
     }