@Nullable
  public static IProperty findProperty(@NotNull Project project, @NotNull VirtualFile file, @NotNull String propName) {
    PropertiesFile propertiesFile = getPropertiesFile(project, file);
    return propertiesFile == null ? null : propertiesFile.findPropertyByKey(propName);
  }
@Nullable
  public static IProperty findProperty(@NotNull Project project, @NotNull VirtualFile file, @NotNull String propName)