diff --git a/conf/usersources.ini.template b/conf/usersources.ini.template
index eaf394a589f49932ca84547fa25429f88ff5c160..df221ef5f87033444138f2e9e9d3fe6886c696a3 100644
--- a/conf/usersources.ini.template
+++ b/conf/usersources.ini.template
@@ -32,4 +32,4 @@ default_status = ACTIVE
 ;exclude.group = [uncomment and put excluded groups here]
 
 ;it is necessary to add at least one admin
-user.{a user}.roles = administration
+;user.[uncomment a set a username here].roles = administration
diff --git a/src/main/java/caosdb/server/entity/Message.java b/src/main/java/caosdb/server/entity/Message.java
index 002a2cb174a4714b3c2658b375610480ccbcab5f..03e788251620b6c192eb86f1bbd172564a66235f 100644
--- a/src/main/java/caosdb/server/entity/Message.java
+++ b/src/main/java/caosdb/server/entity/Message.java
@@ -79,20 +79,20 @@ public class Message extends Exception implements Comparable<Message>, ToElement
     this(type, code, null, null);
   }
 
-  public Message(final int code, final String description) {
+  public Message(final Integer code, final String description) {
     this("Message", code, description, null);
   }
 
-  public Message(final MessageType type, final int code, final String description) {
+  public Message(final MessageType type, final Integer code, final String description) {
     this(type.toString(), code, description, null);
   }
 
   public Message(
-      final MessageType type, final int code, final String description, final String body) {
+      final MessageType type, final Integer code, final String description, final String body) {
     this(type.toString(), code, description, body);
   }
 
-  public Message(final String type, final int code, final String description) {
+  public Message(final String type, final Integer code, final String description) {
     this(type, code, description, null);
   }