diff --git a/designer_base/src/com/fr/design/data/datapane/TableDataTreePane.java b/designer_base/src/com/fr/design/data/datapane/TableDataTreePane.java
index 7450b5ede2..ddf8de49c3 100644
--- a/designer_base/src/com/fr/design/data/datapane/TableDataTreePane.java
+++ b/designer_base/src/com/fr/design/data/datapane/TableDataTreePane.java
@@ -46,6 +46,7 @@ import java.util.Map;
 
 public class TableDataTreePane extends BasicTableDataTreePane {
     private static TableDataTreePane singleton = new TableDataTreePane();
+    private static final int TIP_DISMISS_DELAY = 3000;
 
 
     public synchronized static BasicTableDataTreePane getInstance(DesignModelAdapter<?, ?> tc) {
@@ -72,25 +73,21 @@ public class TableDataTreePane extends BasicTableDataTreePane {
     private PreviewTableDataAction previewTableDataAction;
 
     private TableDataTreePane() {
+        init();
+    }
+
+    private void init() {
         this.setLayout(new BorderLayout(4, 0));
         this.setBorder(null);
         dataTree = new TableDataTree();
         ToolTipManager.sharedInstance().registerComponent(dataTree);
-        ToolTipManager.sharedInstance().setDismissDelay(3000);
+        ToolTipManager.sharedInstance().setDismissDelay(TIP_DISMISS_DELAY);
         ToolTipManager.sharedInstance().setInitialDelay(0);
         addMenuDef = new MenuDef(Inter.getLocText("FR-Action_Add"));
         addMenuDef.setIconPath(IconPathConstants.ADD_POPMENU_ICON_PATH);
 
         createAddMenuDef();
 
-        GeneralContext.addPluginReadListener(new PluginReadListener() {
-            @Override
-            public void success(Status status) {
-                addMenuDef.clearShortCuts();
-                createAddMenuDef();
-            }
-        });
-
         editAction = new EditAction();
         removeAction = new RemoveAction();
         previewTableDataAction = new PreviewTableDataAction(dataTree);
@@ -113,13 +110,9 @@ public class TableDataTreePane extends BasicTableDataTreePane {
         jPanel.add(buttonPane, BorderLayout.NORTH);
         jPanel.add(scrollPane, BorderLayout.CENTER);
         this.add(jPanel, BorderLayout.CENTER);
-        dataTree.addMouseListener(new MouseAdapter() {
-            @Override
-            public void mousePressed(MouseEvent e) {
-                checkButtonEnabled();
-            }
-        });
-        dataTree.addKeyListener(getTableTreeNodeListener(editAction, previewTableDataAction, removeAction, op, dataTree));
+
+        initListeners();
+
         // TreeCellEditor
         dataTree.setEditable(true);
         TableDataTreeCellEditor treeCellEditor = new TableDataTreeCellEditor(new UITextField(), dataTree, this);
@@ -129,6 +122,23 @@ public class TableDataTreePane extends BasicTableDataTreePane {
         checkButtonEnabled();
     }
 
+    private void initListeners() {
+        GeneralContext.addPluginReadListener(new PluginReadListener() {
+            @Override
+            public void success(Status status) {
+                addMenuDef.clearShortCuts();
+                createAddMenuDef();
+            }
+        });
+        dataTree.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mousePressed(MouseEvent e) {
+                checkButtonEnabled();
+            }
+        });
+        dataTree.addKeyListener(getTableTreeNodeListener(editAction, previewTableDataAction, removeAction, op, dataTree));
+    }
+
 
     protected void checkButtonEnabled() {
         super.checkButtonEnabled(editAction, previewTableDataAction, removeAction, op, dataTree);