diff --git a/lucene/CHANGES.txt b/lucene/CHANGES.txt
index d199da17938..7ee1b813a75 100644
--- a/lucene/CHANGES.txt
+++ b/lucene/CHANGES.txt
@@ -149,6 +149,9 @@ Bug Fixes
 
 * LUCENE-10533: SpellChecker.formGrams is missing bounds check (Kevin Risden)
 
+* LUCENE-10529: Properly handle when TestTaxonomyFacetAssociations test case randomly indexes
+  no documents instead of throwing an NPE. (Greg Miller)
+
 Build
 ---------------------
 
diff --git a/lucene/facet/src/test/org/apache/lucene/facet/taxonomy/TestTaxonomyFacetAssociations.java b/lucene/facet/src/test/org/apache/lucene/facet/taxonomy/TestTaxonomyFacetAssociations.java
index 3edd49cd61f..eb6088922eb 100644
--- a/lucene/facet/src/test/org/apache/lucene/facet/taxonomy/TestTaxonomyFacetAssociations.java
+++ b/lucene/facet/src/test/org/apache/lucene/facet/taxonomy/TestTaxonomyFacetAssociations.java
@@ -427,9 +427,16 @@ public class TestTaxonomyFacetAssociations extends FacetTestCase {
     }
 
     FacetResult facetResult = facets.getTopChildren(10, dim);
-    assertEquals(dim, facetResult.dim);
-    assertEquals(aggregatedValue, facetResult.value.intValue());
-    assertEquals(expected.size(), facetResult.childCount);
+
+    if (expected.isEmpty()) {
+      // If we hit the rare random case where nothing is indexed for the dim, we expect a null
+      // facetResult (see: LUCENE-10529)
+      assertNull(facetResult);
+    } else {
+      assertEquals(dim, facetResult.dim);
+      assertEquals(aggregatedValue, facetResult.value.intValue());
+      assertEquals(expected.size(), facetResult.childCount);
+    }
   }
 
   private void validateFloats(
@@ -451,8 +458,15 @@ public class TestTaxonomyFacetAssociations extends FacetTestCase {
     }
 
     FacetResult facetResult = facets.getTopChildren(10, dim);
-    assertEquals(dim, facetResult.dim);
-    assertEquals(aggregatedValue, facetResult.value.floatValue(), 1);
-    assertEquals(expected.size(), facetResult.childCount);
+
+    if (expected.isEmpty()) {
+      // If we hit the rare random case where nothing is indexed for the dim, we expect a null
+      // facetResult (see: LUCENE-10529)
+      assertNull(facetResult);
+    } else {
+      assertEquals(dim, facetResult.dim);
+      assertEquals(aggregatedValue, facetResult.value.floatValue(), 1);
+      assertEquals(expected.size(), facetResult.childCount);
+    }
   }
 }