Where can I find Tomcat java options documentation?

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I am most interested in settings that begin with -D and, in particular, the setting

 -Dlog4j.debug

Where can I find its description? What does this setting mean, what is it for?

    1 answer 1

    Where can I find Tomcat java options documentation?

    Of course, on the original source http://tomcat.apache.org/ . There is no documentation in Russian yet, only pieces of information.

    I’m most interested in settings starting with -D

    The prefix -D means the default setting (Default).

    in particular, the -Dlog4j.debug setting

    You can include -Dlog4j.debug to print debugging information into the System.out stream. By default, Log4j searches for a file named log4j.properties or log4j.xml. You can control which file it uses to initialize and customize Log4j.

    See the "Default Initialization under Tomcat" (ref) .