From 7396fa07bf1334e02c0f682f742732935a5cd7ff Mon Sep 17 00:00:00 2001
From: pbakker <pbakker@netflix.com>
Date: Mon, 18 Nov 2024 16:47:19 -0800
Subject: [PATCH] Add null check on sourcePreview from InvalidSyntaxException

---
 .../src/main/kotlin/com/netflix/graphql/dgs/codegen/CodeGen.kt  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/CodeGen.kt b/graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/CodeGen.kt
index 4cb9ff85..cc7656eb 100644
--- a/graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/CodeGen.kt
+++ b/graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/CodeGen.kt
@@ -139,7 +139,7 @@ class CodeGen(private val config: CodeGenConfig) {
                 parser.parseDocument(parserEnv)
             } catch (exception: InvalidSyntaxException) {
                 // check if the schema is empty
-                if (exception.sourcePreview.isBlank()) {
+                if (exception.sourcePreview == null || exception.sourcePreview.isBlank()) {
                     logger.warn("Schema is empty")
                     // return an empty document
                     return Document.newDocument().build()