// Test with empty pattern list
        Set<String> result = labelTypeHelper.getMatchedLabelValueSet("/nonexistent/path");
        assertNotNull(result);
    }

    public void test_getMatchedLabelValueSet_nullPath() {
        try {
            labelTypeHelper.getMatchedLabelValueSet(null);
            fail("Should handle null path gracefully or throw appropriate exception");
        } catch (Exception e) {