docs: public DirContext getInnermostDelegateDirContext() {
          final DirContext delegateDirContext = this.getDelegateDirContext();
  
          if (delegateDirContext instanceof DelegatingDirContext) {
              return ((DelegatingDirContext)delegateDirContext).getInnermostDelegateDirContext();
          }
  
          return delegateDirContext;
      }