diff --git a/benchmarks/src/main/java/org/elasticsearch/benchmark/compute/operator/ValuesSourceReaderBenchmark.java b/benchmarks/src/main/java/org/elasticsearch/benchmark/compute/operator/ValuesSourceReaderBenchmark.java
index 4f8d4018ffdac..afe8377d3e58c 100644
--- a/benchmarks/src/main/java/org/elasticsearch/benchmark/compute/operator/ValuesSourceReaderBenchmark.java
+++ b/benchmarks/src/main/java/org/elasticsearch/benchmark/compute/operator/ValuesSourceReaderBenchmark.java
@@ -176,6 +176,11 @@ public SearchLookup lookup() {
                 public Set<String> sourcePaths(String name) {
                     return Set.of(name);
                 }
+
+                @Override
+                public String parentField(String field) {
+                    throw new UnsupportedOperationException();
+                }
             });
         }
         throw new IllegalArgumentException("can't read [" + name + "]");
diff --git a/x-pack/plugin/esql/compute/src/test/java/org/elasticsearch/compute/lucene/ValuesSourceReaderOperatorTests.java b/x-pack/plugin/esql/compute/src/test/java/org/elasticsearch/compute/lucene/ValuesSourceReaderOperatorTests.java
index d7dd26ab1122e..ccaff39ef38fb 100644
--- a/x-pack/plugin/esql/compute/src/test/java/org/elasticsearch/compute/lucene/ValuesSourceReaderOperatorTests.java
+++ b/x-pack/plugin/esql/compute/src/test/java/org/elasticsearch/compute/lucene/ValuesSourceReaderOperatorTests.java
@@ -328,6 +328,11 @@ public SearchLookup lookup() {
             public Set<String> sourcePaths(String name) {
                 return Set.of(name);
             }
+
+            @Override
+            public String parentField(String field) {
+                throw new UnsupportedOperationException();
+            }
         })));
     }
 
diff --git a/x-pack/plugin/mapper-constant-keyword/src/test/java/org/elasticsearch/xpack/constantkeyword/mapper/ConstantKeywordFieldMapperTests.java b/x-pack/plugin/mapper-constant-keyword/src/test/java/org/elasticsearch/xpack/constantkeyword/mapper/ConstantKeywordFieldMapperTests.java
index 87db404a40142..21f0a3d2135a3 100644
--- a/x-pack/plugin/mapper-constant-keyword/src/test/java/org/elasticsearch/xpack/constantkeyword/mapper/ConstantKeywordFieldMapperTests.java
+++ b/x-pack/plugin/mapper-constant-keyword/src/test/java/org/elasticsearch/xpack/constantkeyword/mapper/ConstantKeywordFieldMapperTests.java
@@ -248,6 +248,11 @@ public SearchLookup lookup() {
             public Set<String> sourcePaths(String name) {
                 return mapper.mappingLookup().sourcePaths(name);
             }
+
+            @Override
+            public String parentField(String field) {
+                throw new UnsupportedOperationException();
+            }
         });
         try (Directory directory = newDirectory()) {
             RandomIndexWriter iw = new RandomIndexWriter(random(), directory);