@Nullable
  public static JpsAntArtifactExtension getPreprocessingExtension(@NotNull JpsArtifact artifact) {
    return artifact.getContainer().getChild(JpsAntArtifactExtensionImpl.PREPROCESSING_ROLE);
  }
@Nullable
  public static JpsAntArtifactExtension getPreprocessingExtension(@NotNull JpsArtifact artifact)