The new command-line option, -Xlog, was added to the logging framework in Java 9. This command-line option has an extensive array of parameters and possibilities. The basic syntax is simply -Xlog followed by an option. Here is the formal basic syntax:
-Xlog[:option]
Here is a basic example with the all option:
-Xlog:all
Here is the extensive command-line syntax used to configure the new unified logging:
-Xlog[:option]option := [<what>][:[<output>][:[<decorators>][:<output-options>]]] 'help' 'disable'what := <selector>[,...]selector := <tag-set>[*][=<level>]tag-set := <tag>[+..] 'all'tag := name of taglevel := trace debug info warning erroroutput := 'stderr' 'stdout' [file=]<filename>decorators := <decorator>[,...] 'none' ...
