From ee3024c1b76f732f4faa2e946c38593f2ba7ef47 Mon Sep 17 00:00:00 2001
From: dotasek <david.otasek@smilecdr.com>
Date: Thu, 22 Aug 2024 13:36:54 -0400
Subject: [PATCH] WIP cherry-pick fix for NPE in IGLoader

---
 .../main/java/org/hl7/fhir/validation/IgLoader.java    | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/IgLoader.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/IgLoader.java
index e0a1a9edc..9f64cdc62 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/IgLoader.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/IgLoader.java
@@ -497,10 +497,12 @@ public class IgLoader implements IValidationEngineLoader {
   private Map<String, ByteProvider> fetchByPackage(String src, boolean loadInContext) throws FHIRException, IOException {
     NpmPackage pi;
     
-    InputStream stream = directProvider.fetchByPackage(src);
-    if (stream != null) {
-      pi = NpmPackage.fromPackage(stream);
-      return loadPackage(pi, loadInContext);
+    if (directProvider != null) {
+      InputStream stream = directProvider.fetchByPackage(src);
+      if (stream != null) {
+        pi = NpmPackage.fromPackage(stream);
+        return loadPackage(pi, loadInContext);
+      }
     }
     String id = src;
     String version = null;