Lwm2m fix bug if model == null add log to thingsboard

common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/downlink/DefaultLwM2mDownlinkMsgHandler.java

@@ -186,6 +186,9 @@ public class DefaultLwM2mDownlinkMsgHandler extends LwM2MExecutorAwareService im
             }
             sendSimpleRequest(client, downlink, request.getTimeout(), callback);
         }
+        else {
+            callback.onValidationError(toString(request), "Resource " + request.getVersionedId() + " is not configured in the device profile!");
+        }
     }
 
     @Override
@@ -271,10 +274,15 @@ public class DefaultLwM2mDownlinkMsgHandler extends LwM2MExecutorAwareService im
              **/
             Collection<LwM2mResource> resources = client.getNewResourceForInstance(request.getVersionedId(), request.getValue(), modelProvider, this.converter);
             ResourceModel resourceModelWrite = client.getResourceModel(request.getVersionedId(), modelProvider);
-            ContentFormat contentFormat = request.getObjectContentFormat() != null ? request.getObjectContentFormat() : convertResourceModelTypeToContentFormat(client, resourceModelWrite.type);
+            if (resourceModelWrite != null) {
-            WriteRequest downlink = new WriteRequest(WriteRequest.Mode.UPDATE, contentFormat, resultIds.getObjectId(),
+                ContentFormat contentFormat = request.getObjectContentFormat() != null ? request.getObjectContentFormat() : convertResourceModelTypeToContentFormat(client, resourceModelWrite.type);
-                    resultIds.getObjectInstanceId(), resources);
+                WriteRequest downlink = new WriteRequest(WriteRequest.Mode.UPDATE, contentFormat, resultIds.getObjectId(),
-            sendSimpleRequest(client, downlink, request.getTimeout(), callback);
+                        resultIds.getObjectInstanceId(), resources);
+                sendSimpleRequest(client, downlink, request.getTimeout(), callback);
+            }
+            else {
+                callback.onValidationError(toString(request), "Resource " + request.getVersionedId() + " is not configured in the device profile!");
+            }
         } else if (resultIds.isObjectInstance()) {
             /*
              *  params = "{\"id\":0,\"resources\":[{\"id\":14,\"value\":\"+5\"},{\"id\":15,\"value\":\"+9\"}]}"