@NotNull
  public static XsltDebuggerSession create(Project project, @NotNull ProcessHandler process, Debugger client) {
    final XsltDebuggerSession session = new XsltDebuggerSession(project, process, client);
    process.putUserData(DEBUGGER_SESSION, session);
    return session;
  }
@NotNull
  public static XsltDebuggerSession create(Project project, @NotNull ProcessHandler process, Debugger client)