assertEquals("******@****.***", permissionHelper.encode("{user}******@****.***"));
        assertEquals("2group/subgroup", permissionHelper.encode("{group}group/subgroup"));
        assertEquals("RAdministrators", permissionHelper.encode("{role}Administrators"));
        assertEquals("D1user with spaces", permissionHelper.encode("(deny){user}user with spaces"));

 * Class-level state (static fields, metaclass mutations) persists across evaluations
 * of the same script. In Fess, scripts are short expressions configured by
 * administrators (e.g., "data1 > 10", "10 * boost1 + boost2") and do not use
 * static state, so this is acceptable.</p>
 *
 * <p>Resource Management: Each cached entry's GroovyClassLoader is closed on