diff -r dff620cf2e14 refactoring.api/src/org/netbeans/modules/refactoring/spi/impl/Bundle.properties
--- a/refactoring.api/src/org/netbeans/modules/refactoring/spi/impl/Bundle.properties	Wed Jul 15 06:31:45 2009 +0400
+++ b/refactoring.api/src/org/netbeans/modules/refactoring/spi/impl/Bundle.properties	Wed Jul 15 11:40:24 2009 +0200
@@ -143,3 +143,5 @@
 LBL_ProposedRefactoring=Proposed Refactoring
 LBL_NewFile=New File
 LBL_Refactored=Refactored {0}
+SAFE_DELETE_QUESTION=Would you like to invoke safe delete?
+SAFE_DELETE_QUESTION_TITLE=Refactoring safe delete
diff -r dff620cf2e14 refactoring.api/src/org/netbeans/modules/refactoring/spi/impl/SafeDeleteAction.java
--- a/refactoring.api/src/org/netbeans/modules/refactoring/spi/impl/SafeDeleteAction.java	Wed Jul 15 06:31:45 2009 +0400
+++ b/refactoring.api/src/org/netbeans/modules/refactoring/spi/impl/SafeDeleteAction.java	Wed Jul 15 11:40:24 2009 +0200
@@ -44,8 +44,12 @@
 import java.util.logging.LogRecord;
 import java.util.logging.Logger;
 import javax.swing.SwingUtilities;
+import javax.swing.text.html.Option;
 import org.netbeans.modules.refactoring.api.impl.ActionsImplementationFactory;
 import org.netbeans.modules.refactoring.api.ui.ExplorerContext;
+import org.openide.DialogDescriptor;
+import org.openide.DialogDisplayer;
+import org.openide.NotifyDescriptor;
 import org.openide.nodes.Node;
 import org.openide.util.HelpCtx;
 import org.openide.util.Lookup;
@@ -108,6 +112,16 @@
     private boolean regularDelete = false;
     public boolean delete(final Node[] nodes) {
         if (enable(nodes)) {
+            if (nodes.length > 1) {
+                Object o = DialogDisplayer.getDefault().notify(new NotifyDescriptor (
+                        NbBundle.getBundle(SafeDeleteAction.class).getString("SAFE_DELETE_QUESTION"), // NOI18N
+                        NbBundle.getBundle(SafeDeleteAction.class).getString("SAFE_DELETE_QUESTION_TITLE"), // NOI18N
+                        DialogDescriptor.YES_NO_OPTION,
+                        DialogDescriptor.QUESTION_MESSAGE, null, DialogDescriptor.NO_OPTION));
+                if (!DialogDescriptor.YES_OPTION.equals(o)) {
+                    return false;
+                }
+            }
             if (java.awt.EventQueue.isDispatchThread()) {
                 regularDelete = true;
                 performAction(nodes);