diff --git a/htroot/Connections_p.java b/htroot/Connections_p.java
index 3e5820336..34d7ce5f3 100644
--- a/htroot/Connections_p.java
+++ b/htroot/Connections_p.java
@@ -230,11 +230,12 @@ public final class Connections_p {
         prop.putNum("numActivePending", numActivePending);
         
         // client sessions
-        Set<HttpConnectionInfo> a = HttpConnectionInfo.getAllConnections();
+        Set<HttpConnectionInfo> allConnections = HttpConnectionInfo.getAllConnections();
         // TODO sorting
 //        Arrays.sort(a, httpc.connectionTimeComparatorInstance);
         int c = 0;
-        for (HttpConnectionInfo conInfo: a) {
+        synchronized (allConnections) {
+        for (HttpConnectionInfo conInfo: allConnections) {
             prop.put("clientList_" + c + "_clientProtocol", conInfo.getProtocol());
             prop.putNum("clientList_" + c + "_clientLifetime", conInfo.getLifetime());
             prop.putNum("clientList_" + c + "_clientIdletime", conInfo.getIdletime());
@@ -242,7 +243,8 @@ public final class Connections_p {
             prop.putHTML("clientList_" + c + "_clientCommand", conInfo.getCommand());
             prop.put("clientList_" + c + "_clientID", conInfo.getID());
             c++;
-       }
+        }
+        }
         prop.put("clientList", c);
         prop.put("clientActive", JakartaCommonsHttpClient.connectionCount());
         
diff --git a/source/de/anomic/http/HttpConnectionInfo.java b/source/de/anomic/http/HttpConnectionInfo.java
index fa75cf664..a3c6e266a 100644
--- a/source/de/anomic/http/HttpConnectionInfo.java
+++ b/source/de/anomic/http/HttpConnectionInfo.java
@@ -111,6 +111,10 @@ public class HttpConnectionInfo {
     }
 
     /**
+     * gets a {@link Set} of all collected ConnectionInfos
+     * 
+     * Important: iterations must be synchronized!
+     * 
      * @return the allConnections
      */
     public static Set<HttpConnectionInfo> getAllConnections() {