abbccdda commented on a change in pull request #9083:
URL: https://github.com/apache/kafka/pull/9083#discussion_r492941448



##########
File path: 
streams/src/test/java/org/apache/kafka/streams/processor/internals/StreamTaskTest.java
##########
@@ -1566,6 +1566,7 @@ public void shouldCheckpointForSuspendedTask() {
         EasyMock.verify(stateManager);
     }
 
+

Review comment:
       nit: not necessary

##########
File path: 
streams/src/main/java/org/apache/kafka/streams/processor/internals/ProcessorContextImpl.java
##########
@@ -217,12 +217,12 @@ public StateStore getStateStore(final String name) {
                     forward((ProcessorNode<K, V, ?, ?>) child, key, value);
                 }
             } else {
-                final ProcessorNode<K, V, ?, ?> child = 
currentNode().getChild(sendTo);

Review comment:
       +1

##########
File path: 
streams/src/main/java/org/apache/kafka/streams/kstream/internals/KStreamFlatTransformValues.java
##########
@@ -44,19 +45,18 @@ public KStreamFlatTransformValues(final 
ValueTransformerWithKeySupplier<KIn, VIn
         return valueTransformerSupplier.stores();
     }
 
-    public static class KStreamFlatTransformValuesProcessor<KIn, VIn, VOut> 
implements Processor<KIn, VIn> {
+    public static class KStreamFlatTransformValuesProcessor<KIn, VIn, VOut> 
extends AbstractProcessor<KIn, VIn> {

Review comment:
       Could you elaborate why this is better than Processor?




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