Program: 190498
Project: 190498
Buggy source:
public void doImport(Database database){
  try {
    DatabaseType type=getDatabaseType(database);
    if (type == null) {
      throw new ImportException(NbBundle.getMessage(getClass(),"String_Node_Str"));
    }
    final DatabaseImporter importer=getMatchingImporter(type);
    if (importer == null) {
      throw new ImportException(NbBundle.getMessage(getClass(),"String_Node_Str"));
    }
    DatabaseTypeUI ui=type.getUI();
    if (ui != null) {
      ui.setup(type);
      String title="String_Node_Str";
      JPanel panel=ui.getPanel();
      if (panel instanceof ValidationPanel) {
        ValidationPanel validationPanel=(ValidationPanel)panel;
        if (!validationPanel.showOkCancelDialog(title)) {
          return;
        }
      }
 else {
        DialogDescriptor dd=new DialogDescriptor(panel,title);
        if (DialogDisplayer.getDefault().notify(dd).equals(NotifyDescriptor.CANCEL_OPTION)) {
          return;
        }
      }
      ui.unsetup();
      database=ui.getDatabase();
    }
    final Container container=Lookup.getDefault().lookup(Container.class);
    container.setSource("String_Node_Str" + importer.getClass());
    final Report report=new Report();
    container.setReport(report);
    LongTask task=null;
    if (importer instanceof LongTask) {
      task=(LongTask)importer;
    }
    final LongTaskErrorHandler errorHandler=new LongTaskErrorHandler(){
      public void fatalError(      Throwable t){
        NotifyDescriptor.Exception ex=new NotifyDescriptor.Exception(t);
        DialogDisplayer.getDefault().notify(ex);
      }
    }
;
    final Database db=database;
    executor.execute(task,new Runnable(){
      public void run(){
        try {
          importer.importData(db,container.getLoader(),report);
          finishImport(container);
        }
 catch (        Exception ex) {
          ex.printStackTrace();
          throw new RuntimeException(ex);
        }
      }
    }
,"String_Node_Str",errorHandler);
  }
 catch (  Exception ex) {
    NotifyDescriptor.Message e=new NotifyDescriptor.Message(ex.getMessage(),NotifyDescriptor.WARNING_MESSAGE);
    DialogDisplayer.getDefault().notifyLater(e);
    ex.printStackTrace();
  }
}

Fixed version (ground truth):
public void doImport(Database database){
  try {
    DatabaseType type=getDatabaseType(database);
    if (type == null) {
      throw new ImportException(NbBundle.getMessage(getClass(),"String_Node_Str"));
    }
    final DatabaseImporter importer=getMatchingImporter(type);
    if (importer == null) {
      throw new ImportException(NbBundle.getMessage(getClass(),"String_Node_Str"));
    }
    DatabaseTypeUI ui=type.getUI();
    if (ui != null) {
      ui.setup(type);
      String title="String_Node_Str";
      JPanel panel=ui.getPanel();
      if (panel instanceof ValidationPanel) {
        ValidationPanel validationPanel=(ValidationPanel)panel;
        if (!validationPanel.showOkCancelDialog(title)) {
          return;
        }
      }
 else {
        DialogDescriptor dd=new DialogDescriptor(panel,title);
        if (DialogDisplayer.getDefault().notify(dd).equals(NotifyDescriptor.CANCEL_OPTION)) {
          return;
        }
      }
      ui.unsetup();
      database=ui.getDatabase();
    }
    final Container container=Lookup.getDefault().lookup(ContainerFactory.class).newContainer();
    container.setSource("String_Node_Str" + importer.getClass());
    final Report report=new Report();
    container.setReport(report);
    LongTask task=null;
    if (importer instanceof LongTask) {
      task=(LongTask)importer;
    }
    final LongTaskErrorHandler errorHandler=new LongTaskErrorHandler(){
      public void fatalError(      Throwable t){
        NotifyDescriptor.Exception ex=new NotifyDescriptor.Exception(t);
        DialogDisplayer.getDefault().notify(ex);
      }
    }
;
    final Database db=database;
    executor.execute(task,new Runnable(){
      public void run(){
        try {
          importer.importData(db,container.getLoader(),report);
          finishImport(container);
        }
 catch (        Exception ex) {
          ex.printStackTrace();
          throw new RuntimeException(ex);
        }
      }
    }
,"String_Node_Str",errorHandler);
  }
 catch (  Exception ex) {
    NotifyDescriptor.Message e=new NotifyDescriptor.Message(ex.getMessage(),NotifyDescriptor.WARNING_MESSAGE);
    DialogDisplayer.getDefault().notifyLater(e);
    ex.printStackTrace();
  }
}