@Override
      public void extensionRemoved(@NotNull ServerType removedType, @NotNull PluginDescriptor pluginDescriptor) {
        @SuppressWarnings("unchecked") List<RemoteServer<?>> removedServers = getServers(removedType);
        removedServers.forEach(nextServer -> {
          RemoteServerState nextState = createServerState(nextServer);
          removeServer(nextServer);
          myUnknownServers.add(nextState);
        });
        if (!removedServers.isEmpty()) {
          myDefaultValuesFilter = new SkipDefaultValuesSerializationFilters();
        }
      }
@Override
      public void extensionRemoved(@NotNull ServerType removedType, @NotNull PluginDescriptor pluginDescriptor)