GH-653 Nullify fieldReader when invalidating parent object.

lriggs · lriggs · commit a313dac09edf · 2025-03-05T14:58:18.000-08:00
diff --git a/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java b/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java
@@ -769,6 +769,7 @@ public UnionVector promoteToUnion() {
   }
 
   protected void invalidateReader() {
+    fieldReader = null;
     reader = null;
   }
 

Original file line number	Diff line number	Diff line change
`@@ -769,6 +769,7 @@ public UnionVector promoteToUnion() {`
`769`	`769`	`}`
`770`	`770`
`771`	`771`	`protected void invalidateReader() {`
	`772`	`+ fieldReader = null;`
`772`	`773`	`reader = null;`
`773`	`774`	`}`
`774`	`775`