diff --git a/mcp/src/test/java/io/modelcontextprotocol/client/transport/HttpClientStreamableHttpTransportErrorHandlingTest.java b/mcp/src/test/java/io/modelcontextprotocol/client/transport/HttpClientStreamableHttpTransportErrorHandlingTest.java
index 2b502a83b..b82d6eb2c 100644
--- a/mcp/src/test/java/io/modelcontextprotocol/client/transport/HttpClientStreamableHttpTransportErrorHandlingTest.java
+++ b/mcp/src/test/java/io/modelcontextprotocol/client/transport/HttpClientStreamableHttpTransportErrorHandlingTest.java
@@ -63,7 +63,7 @@ void startServer() throws IOException {
 			if ("DELETE".equals(httpExchange.getRequestMethod())) {
 				httpExchange.sendResponseHeaders(200, 0);
 			}
-			else {
+			else if ("POST".equals(httpExchange.getRequestMethod())) {
 				// Capture session ID from request if present
 				String requestSessionId = httpExchange.getRequestHeaders().getFirst(HttpHeaders.MCP_SESSION_ID);
 				lastReceivedSessionId.set(requestSessionId);