Issue #5133 - Fixing ResourceCollection(String) when no entries provi…

…ded. Signed-off-by: Joakim Erdfelt <[email protected]>
jetty · Aug 20, 2020 · b35c433 · b35c433
1 parent f881a1a
commit b35c433
Showing 1 changed file with 9 additions and 4 deletions.
diff --git a/jetty-util/src/main/java/org/eclipse/jetty/util/resource/ResourceCollection.java b/jetty-util/src/main/java/org/eclipse/jetty/util/resource/ResourceCollection.java
@@ -202,13 +202,18 @@ public void setResourcesAsCSV(String csvResources) throws IOException
             throw new IllegalArgumentException("CSV String is blank");
         }
 
-        List<Resource> res = new ArrayList<>();
-        for (Resource resource : Resource.fromList(csvResources, false))
+        List<Resource> resources = Resource.fromList(csvResources, false);
+        if (resources.isEmpty())
+        {
+            throw new IllegalArgumentException("CSV String contains no entries");
+        }
+        List<Resource> ret = new ArrayList<>();
+        for (Resource resource : resources)
         {
             assertResourceValid(resource);
-            res.add(resource);
+            ret.add(resource);
         }
-        setResources(res);
+        setResources(ret);
     }
 
     /**