assertTrue(ex.getMessage() != null && ex.getMessage().contains("Not connected"));
    }

    static java.util.stream.Stream<Arguments> npePublicGetters() {
        return java.util.stream.Stream.of(Arguments.of("getTreeType()", (org.junit.jupiter.api.function.Executable) () -> {
            CIFSContext ctx = mock(CIFSContext.class);