Hi Daniel, thanks for the quick reply. And you are of course right.
Luckily I don't care about the specific G1 message. After setting everything up, I was looking for _anything_ that logs a message and that was the first thing I came up with. Forgot the "platform classes" in the first sentence. :( Any idea what else I could use that logs messages via the new API? so long ... Nicolai On 19.08.2016 17:16, Daniel Fuchs wrote: > Hi Nicolai, > > Log messages emitted by the JVM are not emitted through the > System.Logger API. JEP 264 is a pure Java API which aims at > replacing the sun.util.logging.PlatformLogger implementation. > > I believe what you are looking for is JEP 158 Unified JVM Logging > [1] > > best regards, > > -- daniel > > [1] http://openjdk.java.net/jeps/158 > > > On 19/08/16 16:05, Nicolai Parlog wrote: >> Hi! >> >> I'm trying out JEP 264: Platform Logging API and Service but >> can't get it to work (or misunderstood something). >> >> My understanding is that the JVM should use the provided >> LoggerFinder to log its own messages. So when I start with >> "-verbose:gc" I expected the message "Using G1" to go through my >> logger implementation - but it doesn't. >> >> I've set up a demo project[1], in which I'm creating a modules >> `logger`, which provides `LoggerFinder`, and `app`, which holds >> the started application. I launch with: >> >> java -verbose:gc -mp out/mods -m org.codefx.demo.java9.app >> >> The messages I send from the app module go through my logger, so >> the service module gets picked up. But the G1 message doesn't. :( >> I noticed that the docs[2] say this: >> >>> First it finds any custom LoggerFinder provider using the >> ServiceLoader facility with the system class loader. >> >> Do I have to do anything differently to make my service available >> to the system class loader? >> >> On a tangent, I also wondered what would be the preferred way to >> log from inside my code. Should I use System::getLogger >> directly? >> >> Logger logger = System.getLogger("Application"); >> logger.log(Level.INFO, "Hello, World!"); >> >> so long ... Nicolai >> >> >> [1] >> https://github.com/CodeFX-org/demo-java-9/tree/master/src/org/codefx/ demo/java9/api/platform_logging >> >> >> [2] >> http://download.java.net/java/jdk9/docs/api/java/lang/System.LoggerFi nder.html >> >> >> >> > >> -- PGP Key: http://keys.gnupg.net/pks/lookup?op=vindex&search=0xCA3BAD2E9CCCD509 Web: http://codefx.org a blog about software development http://do-foss.de Free and Open Source Software for the City of Dortmund Twitter: https://twitter.com/nipafx
