The default port numbers for Coyote and Warp connectors in Plesk are 9080 and 9008.
If you want Tomcat to work on other ports (e.g. 8090 and 8009), you should change the ports by adding two parameters to the database, as in the following example:
insert into misc (param,val) values ('coyote_connector_port', '8090');
insert into misc (param,val) values ('warp_connector_port', '8009');
Note: It is recommended that you change the Tomcat ports right after Plesk is installed on server, or prior to enabling the Tomcat service for your domains.