diff --git a/sdks/java/io/delta/src/test/java/org/apache/beam/sdk/io/delta/DeltaWriteTestUtils.java b/sdks/java/io/delta/src/test/java/org/apache/beam/sdk/io/delta/DeltaWriteTestUtils.java
index 90f987859d79..5ba483d56ce0 100644
--- a/sdks/java/io/delta/src/test/java/org/apache/beam/sdk/io/delta/DeltaWriteTestUtils.java
+++ b/sdks/java/io/delta/src/test/java/org/apache/beam/sdk/io/delta/DeltaWriteTestUtils.java
@@ -145,6 +145,7 @@ public int getInt(int rowId) {
       }
 
       @Override
+      @SuppressWarnings("PatternMatchingInstanceof") // Not available as spotless is on still Java11
       public long getLong(int rowId) {
         if (dataType instanceof TimestampType) {
           Object val = rows.get(rowId).getValue(fieldIndex);