@NotNull
  public final ClassLoader getClassLoader() {
    ClassLoader loader = myClassLoader;
    if (loader == null) {
      final XmlTag tag = getXmlTag();
      final PsiFile containingFile = tag.getContainingFile();
      final AntBuildFileImpl buildFile = (AntBuildFileImpl)AntConfigurationBase.getInstance(containingFile.getProject()).getAntBuildFile(containingFile);
      if (buildFile != null) {
        loader = buildFile.getClassLoader();
      }
      else {
        AntInstallation antInstallation = getAntInstallation();
        loader = antInstallation.getClassLoader();
      }
      myClassLoader = loader;
    }
    return loader;
  }
@NotNull
  public final ClassLoader getClassLoader()