From 436e2b859ad1c8cdf612a1709e9f555366746bd4 Mon Sep 17 00:00:00 2001
From: Peter Hormanns <peter.hormanns@jalin.de>
Date: Tue, 3 Dec 2019 20:23:31 +0100
Subject: [PATCH] fix

---
 .../src/de/hsadmin/mods/dom/DomainProcessorFactory.java    | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/hsarback/src/de/hsadmin/mods/dom/DomainProcessorFactory.java b/hsarback/src/de/hsadmin/mods/dom/DomainProcessorFactory.java
index 8242798..6c915ed 100644
--- a/hsarback/src/de/hsadmin/mods/dom/DomainProcessorFactory.java
+++ b/hsarback/src/de/hsadmin/mods/dom/DomainProcessorFactory.java
@@ -423,7 +423,12 @@ public class DomainProcessorFactory implements EntityProcessorFactory {
 				}
 				final String validSubdomains = d.getValidsubdomainnames();
 				if (autoconfig && !validSubdomains.contains("autoconfig")) {
-					d.setValidsubdomainnames(validSubdomains + ",autoconfig");
+					if (validSubdomains.length() > 0) {
+						d.setValidsubdomainnames(validSubdomains + ",autoconfig");
+					}
+					else {
+						d.setValidsubdomainnames("autoconfig");
+					}
 				}
 			}
 		}