call dbms_java.grant_permission('<schema>','java.net.SocketPermission','<hostname>','resolve');

call dbms_java.grant_permission('<schema>','java.net.SocketPermission','<ipaddress>:<listener port, usually 1521>','resolve,connect');

call dbms_java.grant_permission('<schema>','java.util.PropertyPermission','*','read,write');

commit;