private void updateManifest() {
    myManifestFileConfiguration = myContext.getManifestFile(myElement, myContext.getArtifactType());
    final String card;
    if (myManifestFileConfiguration != null) {
      card = "properties";
      myManifestPathField.setText(FileUtil.toSystemDependentName(myManifestFileConfiguration.getManifestFilePath()));
      myMainClassField.setText(StringUtil.notNullize(myManifestFileConfiguration.getMainClass()));
      myMainClassField.setEnabled(myManifestFileConfiguration.isWritable());
      myClasspathField.setText(StringUtil.join(myManifestFileConfiguration.getClasspath(), " "));
      myClasspathField.setEnabled(myManifestFileConfiguration.isWritable());
    }
    else {
      card = "buttons";
      myManifestPathField.setText("");
    }
    ((CardLayout)myPropertiesPanel.getLayout()).show(myPropertiesPanel, card);
  }
private void updateManifest()