@NotNull
  @Override
  public List<String> getVMArguments() {
    boolean enabled = CompilerReferenceServiceBase.isEnabled();
    if (!enabled) return Collections.emptyList();
    boolean caseSensitiveFS = isCaseSensitiveFS(project);
    return List.of("-D" + JavaBackwardReferenceIndexWriter.PROP_KEY + "=true",
                   "-D" + JavaBackwardReferenceIndexWriter.FS_KEY + "=" + Boolean.valueOf(caseSensitiveFS));
  }
@NotNull
  @Override
  public List<String> getVMArguments()