It is not possible to show the log on the server side in any simple way. Showcase states (fat mine, italics mine):
The Log Log component is a visual console for displaying PrimeFaces internal (read: client) logs. Using the log client API , you can also use the component.
- - . , . PrimeFaces , ( ), -side.
PrimeFaces.info('This is an info message.');
PrimeFaces.warn('This is a warn message.');
PrimeFaces.debug('This is a debug message.');
PrimeFaces.error('This is an error message.');
, , , PrimeFaces p:log, .
, log4j, cdi ( p:push) ( ), " log4j" PrimeFaces p:log, .