From e0dd0d78ec5eb390afe21332f727b4ca637afbeb Mon Sep 17 00:00:00 2001
From: Vadim Peretokin <vperetokin@gmail.com>
Date: Sun, 2 Jun 2019 13:58:53 +0200
Subject: [PATCH] Fix snapshot generation crash when a mapping doesn't have a
 uri

---
 .../main/java/org/hl7/fhir/r5/conformance/ProfileUtilities.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/conformance/ProfileUtilities.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/conformance/ProfileUtilities.java
index 0c0fa040e..4ca7846f3 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/conformance/ProfileUtilities.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/conformance/ProfileUtilities.java
@@ -370,7 +370,7 @@ public class ProfileUtilities extends TranslatingUtilities {
     for (StructureDefinitionMappingComponent baseMap : base.getMapping()) {
       boolean found = false;
       for (StructureDefinitionMappingComponent derivedMap : derived.getMapping()) {
-        if (derivedMap.getUri().equals(baseMap.getUri())) {
+        if (derivedMap.getUri() != null && derivedMap.getUri().equals(baseMap.getUri())) {
           found = true;
           break;
         }