populators.add( wrappedPop );
populators.add( wrappedPop2 );
UnionizingLdapAuthoritiesPopulator unionizer = new UnionizingLdapAuthoritiesPopulator();
unionizer.setPopulators( populators );
unionizer.afterPropertiesSet();
// get the user record
DirContextOperations ctx = new SpringSecurityLdapTemplate( getContextSource() ).retrieveEntry( "uid=suzy,ou=users", //$NON-NLS-1$
null );