new SecurityPermission("setPolicy"),
        new RuntimePermission("setSecurityManager"),
        // Permissions needed by the junit test harness
        new RuntimePermission("accessDeclaredMembers"),
        new PropertyPermission("*", "read"),
        new FilePermission("<<ALL FILES>>", "read"));
  }

  /** Sleeps until the given time has elapsed. Throws AssertionFailedError if interrupted. */