ServerCapabilities builder should not assign logging an initial value

Author: Randgalt

mcp/src/main/java/io/modelcontextprotocol/spec/McpSchema.java

@@ -533,7 +533,7 @@ public static class Builder {
 
 			private Map<String, Object> experimental;
 
-			private LoggingCapabilities logging = new LoggingCapabilities();
+			private LoggingCapabilities logging;
 
 			private PromptCapabilities prompts;
 

mcp/src/test/java/io/modelcontextprotocol/client/McpAsyncClientResponseHandlerTests.java

@@ -81,6 +81,7 @@ void testSuccessfulInitialization() {
 		assertThat(result).isNotNull();
 		assertThat(result.protocolVersion()).isEqualTo(transport.protocolVersions().get(0));
 		assertThat(result.capabilities()).isEqualTo(serverCapabilities);
+		assertThat(result.capabilities().logging()).isNull();
 		assertThat(result.serverInfo()).isEqualTo(serverInfo);
 		assertThat(result.instructions()).isEqualTo("Test instructions");