private static void removeInstallCallback(@NotNull PluginId id, @NotNull ActionCallback callback, boolean isDone) {
    synchronized (ourInstallLock) {
      ActionCallback oldValue = ourInstallCallbacks.get(id);
      if (oldValue == callback) {
        ourInstallCallbacks.remove(id);
      }
    }
    if (isDone) {
      callback.setDone();
    }
    else {
      callback.setRejected();
    }
  }
private static void removeInstallCallback(@NotNull PluginId id, @NotNull ActionCallback callback, boolean isDone)