#fixed code
                                @Override
    public void performAction() {
        AbstractFile targetFile = mainFrame.getActiveTable().getSelectedFile();
        if (targetFile == null) {
            targetFile = mainFrame.getActiveTable().getFileTableModel().getFileAt(0).getParent();
        }
        AbstractFile linkPath = mainFrame.getInactivePanel().getCurrentFolder();
        new CreateSymLinkDialog(mainFrame, linkPath, targetFile).showDialog();
    }
#vulnerable code 
                                @Override
    public void performAction() {
        AbstractFile targetFile = mainFrame.getActiveTable().getSelectedFile();
        if (targetFile == null) {
            targetFile = mainFrame.getInactiveTable().getFileTableModel().getFileAt(0).getParent();
        }
        AbstractFile linkPath = mainFrame.getActivePanel().getCurrentFolder();
        new CreateSymLinkDialog(mainFrame, linkPath, targetFile).showDialog();
    } 
                            #location 5 
                            #vulnerability type NULL_DEREFERENCE