public static FileTypeRegistry getInstance() {
    Supplier<? extends FileTypeRegistry> instanceGetter = FileTypeRegistry.instanceGetter;
    if (instanceGetter == null) {
      // in tests FileTypeManager service maybe not preloaded, so, ourInstanceGetter is not set
      //noinspection deprecation
      return ApplicationManager.getApplication().getServiceByClassName("com.intellij.openapi.fileTypes.FileTypeManager");
    }
    return instanceGetter.get();
  }
public static FileTypeRegistry getInstance()