@Override
    public String getPrefix(String namespaceURI) {
        throw new UnsupportedOperationException("Operation not supported");
    }
@Test
    public void testGetPrefix() {
        try {
            camelSpringNamespace.getPrefix(Constants.XML_SCHEMA_NAMESPACE_URI);
            fail("UnsupportedOperationException expected");
        } catch (UnsupportedOperationException e) {
            // Expected.
        }
    }