diff --git a/designer-base/src/main/java/com/fr/design/data/DesignTableDataManager.java b/designer-base/src/main/java/com/fr/design/data/DesignTableDataManager.java
index f2b1e8e5b..bce63d642 100644
--- a/designer-base/src/main/java/com/fr/design/data/DesignTableDataManager.java
+++ b/designer-base/src/main/java/com/fr/design/data/DesignTableDataManager.java
@@ -50,6 +50,7 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
 
@@ -74,7 +75,7 @@ public abstract class DesignTableDataManager {
     private static java.util.Map<String, String> dsNameChangedMap = new HashMap<String, String>();
     private static List<ChangeListener> globalDsListeners = new ArrayList<>();
 
-    private static Map<String, List<ChangeListener>> dsListenersMap = new HashMap<String, List<ChangeListener>>();
+    private static Map<String, List<ChangeListener>> dsListenersMap = new ConcurrentHashMap<>();
 
 
     public static String NO_PARAMETER = "no_paramater_pane";
@@ -96,8 +97,8 @@ public abstract class DesignTableDataManager {
      */
     private static void fireDsChanged() {
         fireDsChanged(globalDsListeners);
-        for (Entry<String, List<ChangeListener>> listenerEntry : dsListenersMap.entrySet()) {
-            List<ChangeListener> dsListeners = listenerEntry.getValue();
+        for (Iterator<Entry<String, List<ChangeListener>>> entryIterator = dsListenersMap.entrySet().iterator(); entryIterator.hasNext();) {
+            List<ChangeListener> dsListeners = entryIterator.next().getValue();
             fireDsChanged(dsListeners);
         }
     }