@Override
  public void removeSourceElement() {
    if (mySourceElement instanceof LibraryProjectStructureElement) {
      myContext.getModulesConfigurator().getProjectStructureConfigurable().getModulesConfig()
        .removeLibraryOrderEntry(myModule, ((LibraryProjectStructureElement)mySourceElement).getLibrary());
    }
  }
@Override
  public void removeSourceElement()