question: private void logMissingResource ( FacesContext ctx , String resourceName , String libraryName , Throwable t ) { Level level ; if ( ! ctx . isProjectStage ( ProjectStage . Production ) ) { level = Level . WARNING ; } else { level = ( ( t != null ) ? Level . WARNING : Level . FINE ) ; } if ( libraryName != null ) { if ( LOGGER . isLoggable ( level ) ) { LOGGER . log ( level , "jsf.application.resource.unable_to_serve_from_library" , new Object [ ] { resourceName , libraryName } ) ; if ( t != null ) { LOGGER . log ( level , "" , t ) ; } } } else { if ( LOGGER . isLoggable ( level ) ) { LOGGER . log ( level , "jsf.application.resource.unable_to_serve" , new Object [ ] { resourceName } ) ; if ( t != null ) { LOGGER . log ( level , "" , t ) ; } } } }
target:  Log a message indicating a particular resource (reference by name and/or library) could not be found.  If this was due to an exception, the exception provided will be logged as well.