From: Leif Åstrand <leif@vaadin.com>
Date: Fri, 12 Sep 2014 11:12:36 +0000 (+0300)
Subject: Improve error message for missing class name id (#14643)
X-Git-Tag: 7.4.0.beta1~180
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=38125ebc3b517bacef5e12879fe9a6b1d460d7c1;p=vaadin-framework.git

Improve error message for missing class name id (#14643)

Change-Id: I71a96985fab62b648207393916566f3e1d757ad1
---

diff --git a/client/src/com/vaadin/client/ApplicationConfiguration.java b/client/src/com/vaadin/client/ApplicationConfiguration.java
index 87c8ea465f..83dd90b6c2 100644
--- a/client/src/com/vaadin/client/ApplicationConfiguration.java
+++ b/client/src/com/vaadin/client/ApplicationConfiguration.java
@@ -547,7 +547,11 @@ public class ApplicationConfiguration implements EntryPoint {
 
     String getUnknownServerClassNameByTag(int tag) {
         if (unknownComponents != null) {
-            return unknownComponents.get(tag);
+            String className = unknownComponents.get(tag);
+            if (className == null) {
+                className = "unknown class with id " + tag;
+            }
+            return className;
         }
         return null;
     }