Program: 122511
Project: 122511
Buggy source:
@Override public void run(){
  List objects=GEFDeleteAction.filterSameObject(getSelectedObjects());
  if (!objects.isEmpty()) {
    Clipboard clipboard=Clipboard.getDefault();
    boolean noteTextActived=false;
    boolean connectionTextActived=false;
    boolean nodeLabelActived=false;
    if (objects.size() == 1) {
      if (objects.get(0) instanceof NoteEditPart) {
        NoteDirectEditManager directEditManager=((NoteEditPart)objects.get(0)).getDirectEditManager();
        if (directEditManager != null && directEditManager.getCellEditor() != null) {
          noteTextActived=true;
        }
      }
 else       if (objects.get(0) instanceof ConnLabelEditPart) {
        ConnLabelEditPart connLabelEditPart=(ConnLabelEditPart)objects.get(0);
        if (connLabelEditPart.getDirectEditManager() != null && connLabelEditPart.getDirectEditManager().getTextControl() != null) {
          connectionTextActived=true;
        }
      }
 else       if (objects.get(0) instanceof NodeLabelEditPart) {
        NodeLabelEditPart nodeLabelEditPart=(NodeLabelEditPart)objects.get(0);
        if (nodeLabelEditPart.getDirectEditManager() != null && nodeLabelEditPart.getDirectEditManager().getCellEditor() != null) {
          nodeLabelActived=true;
        }
      }
    }
    if (noteTextActived) {
      Text text=((NoteEditPart)objects.get(0)).getDirectEditManager().getTextControl();
      clipboard.setContents(text.getSelectionText());
    }
 else     if (connectionTextActived) {
      Text text=((ConnLabelEditPart)objects.get(0)).getDirectEditManager().getTextControl();
      clipboard.setContents(text.getSelectionText());
    }
 else     if (nodeLabelActived) {
      Text text=(Text)((NodeLabelEditPart)objects.get(0)).getDirectEditManager().getCellEditor().getControl();
      clipboard.setContents(text.getSelectionText());
    }
 else {
      clipboard.setContents(objects);
    }
  }
  IWorkbenchPart part=getWorkbenchPart();
  if (part instanceof AbstractTalendEditor) {
    AbstractTalendEditor talendEditor=(AbstractTalendEditor)part;
    IAction action=talendEditor.getActionRegistry().getAction(ActionFactory.PASTE.getId());
    action.setEnabled(true);
  }
}

Fixed version (ground truth):
@Override public void run(){
  List objects=GEFDeleteAction.filterSameObject(getSelectedObjects());
  if (!objects.isEmpty()) {
    Clipboard clipboard=Clipboard.getDefault();
    org.eclipse.swt.dnd.Clipboard systemClipboard=new org.eclipse.swt.dnd.Clipboard(Display.getCurrent());
    boolean noteTextActived=false;
    boolean connectionTextActived=false;
    boolean nodeLabelActived=false;
    Text text=null;
    if (objects.size() == 1) {
      if (objects.get(0) instanceof NoteEditPart) {
        NoteDirectEditManager directEditManager=((NoteEditPart)objects.get(0)).getDirectEditManager();
        if (directEditManager != null && directEditManager.getCellEditor() != null) {
          noteTextActived=true;
        }
      }
 else       if (objects.get(0) instanceof ConnLabelEditPart) {
        ConnLabelEditPart connLabelEditPart=(ConnLabelEditPart)objects.get(0);
        if (connLabelEditPart.getDirectEditManager() != null && connLabelEditPart.getDirectEditManager().getTextControl() != null) {
          connectionTextActived=true;
        }
      }
 else       if (objects.get(0) instanceof NodeLabelEditPart) {
        NodeLabelEditPart nodeLabelEditPart=(NodeLabelEditPart)objects.get(0);
        if (nodeLabelEditPart.getDirectEditManager() != null && nodeLabelEditPart.getDirectEditManager().getCellEditor() != null) {
          nodeLabelActived=true;
        }
      }
    }
    if (noteTextActived) {
      text=((NoteEditPart)objects.get(0)).getDirectEditManager().getTextControl();
      clipboard.setContents(text.getSelectionText());
    }
 else     if (connectionTextActived) {
      text=((ConnLabelEditPart)objects.get(0)).getDirectEditManager().getTextControl();
      clipboard.setContents(text.getSelectionText());
    }
 else     if (nodeLabelActived) {
      text=(Text)((NodeLabelEditPart)objects.get(0)).getDirectEditManager().getCellEditor().getControl();
      clipboard.setContents(text.getSelectionText());
    }
 else {
      clipboard.setContents(objects);
    }
    if (text != null && !("String_Node_Str").equals(text.getSelectionText())) {
      TextTransfer textTransfer=TextTransfer.getInstance();
      Transfer[] transfers=new Transfer[]{textTransfer};
      Object[] data=new Object[]{text.getSelectionText()};
      systemClipboard.setContents(data,transfers);
    }
  }
  IWorkbenchPart part=getWorkbenchPart();
  if (part instanceof AbstractTalendEditor) {
    AbstractTalendEditor talendEditor=(AbstractTalendEditor)part;
    IAction action=talendEditor.getActionRegistry().getAction(ActionFactory.PASTE.getId());
    action.setEnabled(true);
  }
}