@Override
      public void pluginUnloaded(@NotNull IdeaPluginDescriptor pluginDescriptor, boolean isUpdate) {
        synchronized (ourLock) {
          // avoid leaking ArchiveFileSystem registered by plugin, e.g. TgzFileSystem from Kubernetes plugin
          ourHandlerCache.clear();
        }
      }
@Override
      public void pluginUnloaded(@NotNull IdeaPluginDescriptor pluginDescriptor, boolean isUpdate)