public void disposeUIResources() {
    for (ArtifactEditorImpl editor : myArtifactEditors.values()) {
      Disposer.dispose(editor);
    }
    myArtifactEditors.clear();
    if (myModifiableModel != null) {
      myModifiableModel.dispose();
    }
    myArtifactElements.clear();
  }
public void disposeUIResources()