@Override
  public boolean isWritable() {
    if (modificator == null) {
      LOG.error("Forbidden to call `isWritable` outside of the `SdkModificator`. Please, use `com.intellij.openapi.projectRoots.Sdk.getSdkModificator`");
    }
    return modificator.isWritable();
  }
@Override
  public boolean isWritable()