public void setDownloadedGroup(@NotNull PluginsGroupComponent panel,
                                 @NotNull PluginsGroup downloaded,
                                 @NotNull PluginsGroup installing) {
    myInstalledPanel = panel;
    myDownloaded = downloaded;
    myInstalling = installing;
  }
public void setDownloadedGroup(@NotNull PluginsGroupComponent panel,
                                 @NotNull PluginsGroup downloaded,
                                 @NotNull PluginsGroup installing)