private void updateManifestDirField() {
    final boolean enable = !myMainClassField.getText().isEmpty() || !myExtractJarsRadioButton.isSelected();
    setManifestDirFieldEnabled(enable);
    if (enable && myManifestDirField.getText().isEmpty()) {
      final VirtualFile file = ManifestFileUtil.suggestManifestFileDirectory(myContext.getProject(), getSelectedModule());
      if (file != null) {
        myManifestDirField.setText(FileUtil.toSystemDependentName(file.getPath()));
      }
    }
  }
private void updateManifestDirField()