fix(matching): add null-check in custom comperator for address-search results

2 files changed, 11 insertions, 4 deletions

diff --git a/modules/authmodule-eIDAS-v2/src/main/java/at/asitplus/eidas/specific/modules/auth/eidas/v2/controller/AdresssucheController.java b/modules/authmodule-eIDAS-v2/src/main/java/at/asitplus/eidas/specific/modules/auth/eidas/v2/controller/AdresssucheController.java
index 4bb1343a..6faa35fd 100644
--- a/modules/authmodule-eIDAS-v2/src/main/java/at/asitplus/eidas/specific/modules/auth/eidas/v2/controller/AdresssucheController.java
+++ b/modules/authmodule-eIDAS-v2/src/main/java/at/asitplus/eidas/specific/modules/auth/eidas/v2/controller/AdresssucheController.java
@@ -228,9 +228,15 @@ public class AdresssucheController {
         }
 
         int extractInt(String s) {
-          final String num = s.replaceAll("\\D", "");
-          // return 0 if no digits found
-          return num.isEmpty() ? 0 : Integer.parseInt(num);
+          if (StringUtils.isNotEmpty(s)) {
+            final String num = s.replaceAll("\\D", "");
+            // return 0 if no digits found
+            return num.isEmpty() ? 0 : Integer.parseInt(num);
+          
+          } else {
+            return 0;
+            
+          }
         }
       };
     }
diff --git a/modules/authmodule-eIDAS-v2/src/test/java/at/asitplus/eidas/specific/modules/auth/eidas/v2/test/utils/AddressSearchResultTest.java b/modules/authmodule-eIDAS-v2/src/test/java/at/asitplus/eidas/specific/modules/auth/eidas/v2/test/utils/AddressSearchResultTest.java
index 89692ab7..fef157db 100644
--- a/modules/authmodule-eIDAS-v2/src/test/java/at/asitplus/eidas/specific/modules/auth/eidas/v2/test/utils/AddressSearchResultTest.java
+++ b/modules/authmodule-eIDAS-v2/src/test/java/at/asitplus/eidas/specific/modules/auth/eidas/v2/test/utils/AddressSearchResultTest.java
@@ -24,6 +24,7 @@ public class AddressSearchResultTest {
         buildRandom("3"),
         buildRandom("1"),
         buildRandom("10"),
+        buildRandom(null),
         buildRandom("10-12"),
         buildRandom("15")
         );
@@ -34,7 +35,7 @@ public class AddressSearchResultTest {
 
     
     assertArrayEquals("wrong order", 
-        new Object[]{"1", "2", "3", "10", "15", "10-12"},        
+        new Object[]{null, "1", "2", "3", "10", "15", "10-12"},        
         sorted.toArray());