public void reloadContextValues() {
   try {
     contextValuesTable.removeAll();
     ContextValue[] values =
         ConfigurationManager.getInstance(vEditor.getFile().getProject())
             .getContextValues(vEditor.getFile(), false);
     for (int i = 0; i < values.length; i++) {
       TableItem item = new TableItem(contextValuesTable, SWT.NULL);
       String[] arr = {values[i].name, values[i].objClass.getName()};
       item.setText(arr);
     }
     editContextValueButton.setEnabled(false);
     deleteContextValueButton.setEnabled(false);
   } catch (Exception e) {
     Plugin.log(e);
   }
   contextValuesTable.redraw();
 }
 public void doWork() {
   int index = contextValuesTable.getSelectionIndex();
   if (index >= 0) {
     try {
       boolean confirm =
           MessageDialog.openConfirm(
               new Shell(),
               "Confirmation",
               "Are you sure you want to delete this context value?");
       if (confirm) {
         String key = contextValuesTable.getSelection()[0].getText(0);
         ContextValue value =
             ConfigurationManager.getInstance(vEditor.getFile().getProject())
                 .getContextValue(key, vEditor.getFile(), false);
         ConfigurationManager.getInstance(vEditor.getFile().getProject())
             .removeContextValue(value.name, vEditor.getFile());
         reloadContextValues();
       }
     } catch (Exception e1) {
       Plugin.error(e1);
     }
   }
 }