diff --git a/extensions/smallrye-graphql/deployment/src/main/java/io/quarkus/smallrye/graphql/deployment/SmallRyeGraphQLProcessor.java b/extensions/smallrye-graphql/deployment/src/main/java/io/quarkus/smallrye/graphql/deployment/SmallRyeGraphQLProcessor.java
index ffe95cb267369..840588284349c 100644
--- a/extensions/smallrye-graphql/deployment/src/main/java/io/quarkus/smallrye/graphql/deployment/SmallRyeGraphQLProcessor.java
+++ b/extensions/smallrye-graphql/deployment/src/main/java/io/quarkus/smallrye/graphql/deployment/SmallRyeGraphQLProcessor.java
@@ -199,10 +199,12 @@ void buildExecutionService(
         Map<String, byte[]> modifiedClases = graphQLIndexBuildItem.getModifiedClases();
 
         for (Map.Entry<String, byte[]> kv : modifiedClases.entrySet()) {
-            try (ByteArrayInputStream bais = new ByteArrayInputStream(kv.getValue())) {
-                indexer.index(bais);
-            } catch (IOException ex) {
-                LOG.warn("Could not index [" + kv.getKey() + "] - " + ex.getMessage());
+            if (kv.getKey() != null && kv.getValue() != null) {
+                try (ByteArrayInputStream bais = new ByteArrayInputStream(kv.getValue())) {
+                    indexer.index(bais);
+                } catch (IOException ex) {
+                    LOG.warn("Could not index [" + kv.getKey() + "] - " + ex.getMessage());
+                }
             }
         }