@ApiStatus.ScheduledForRemoval
  @ApiStatus.Internal
  @Deprecated
  @SuppressWarnings({"override", "DeprecatedIsStillUsed"})
  <T> @Nullable T getServiceByClassName(@NotNull String serviceClassName);
@ApiStatus.ScheduledForRemoval
  @ApiStatus.Internal
  @Deprecated
  @SuppressWarnings({"override", "DeprecatedIsStillUsed"})
  <T> @Nullable T getServiceByClassName(@NotNull String serviceClassName)