From fd851ba6cb39369f2cb1b5958a90cd023c05426a Mon Sep 17 00:00:00 2001
From: AsamK <asamk@gmx.de>
Date: Sat, 23 Sep 2023 11:52:37 +0200
Subject: [PATCH] Fix batch response in case of empty responses list

This adapts the implementation to the JSON-RPC specification.
---
 src/main/java/org/asamk/signal/jsonrpc/JsonRpcReader.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/asamk/signal/jsonrpc/JsonRpcReader.java b/src/main/java/org/asamk/signal/jsonrpc/JsonRpcReader.java
index e49b6cd0..27da9b0b 100644
--- a/src/main/java/org/asamk/signal/jsonrpc/JsonRpcReader.java
+++ b/src/main/java/org/asamk/signal/jsonrpc/JsonRpcReader.java
@@ -95,7 +95,9 @@ public class JsonRpcReader {
                 return handleRequest(requestHandler, request);
             }).filter(Objects::nonNull).toList();
 
-            jsonRpcSender.sendBatchResponses(responseList);
+            if (responseList.size() > 0) {
+                jsonRpcSender.sendBatchResponses(responseList);
+            }
         }
     }