Copilot commented on code in PR #37659:
URL: https://github.com/apache/shardingsphere/pull/37659#discussion_r2668193766


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agent/plugins/tracing/type/opentelemetry/src/main/java/org/apache/shardingsphere/agent/plugin/tracing/opentelemetry/advice/OpenTelemetryJDBCExecutorCallbackAdvice.java:
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@@ -42,7 +42,9 @@ protected void recordExecuteInfo(final Span parentSpan, final 
TargetAdviceObject
                                      final ConnectionProperties 
connectionProps, final DatabaseType databaseType) {
         Tracer tracer = 
GlobalOpenTelemetry.getTracer(OpenTelemetryConstants.TRACER_NAME);
         SpanBuilder spanBuilder = tracer.spanBuilder(OPERATION_NAME);
-        spanBuilder.setParent(Context.current().with(parentSpan));
+        if (null != parentSpan) {
+            spanBuilder.setParent(Context.current().with(parentSpan));
+        }

Review Comment:
   The test coverage for null parent span handling is missing for 
OpenTelemetryJDBCExecutorCallbackAdvice. While 
OpenTelemetrySQLParserEngineAdvice has a test case 
assertMethodWithoutParentSpan that tests the scenario when 
RootSpanContext.set(null) is called, there is no equivalent test for 
OpenTelemetryJDBCExecutorCallbackAdvice. Since both classes received the same 
null safety improvements, they should have equivalent test coverage.



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