KevinyhZou commented on code in PR #9978:
URL: https://github.com/apache/incubator-gluten/pull/9978#discussion_r2151744067


##########
gluten-flink/runtime/src/main/java/org/apache/flink/streaming/runtime/translators/SourceTransformationTranslator.java:
##########
@@ -81,12 +82,29 @@ private Collection<Integer> translateInternal(
     final ExecutionConfig executionConfig = streamGraph.getExecutionConfig();
 
     // --- Begin Gluten-specific code changes ---
-    if 
(transformation.getSource().getClass().getSimpleName().equals("NexmarkSource")) 
{
+    Class<?> sourceClazz = transformation.getSource().getClass();
+    if (sourceClazz.getSimpleName().equals("NexmarkSource")) {

Review Comment:
   The source jars is not introduced as dependencies by maven, because 
`nexmark-connector` source jar can notbe found at maven central repo; so here 
we use java reflection. And the `runtime` module of gluten-flink is not good to 
introduce some `connector` jars, I think.



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