Hi Jeremy, Which jdk version/distribution are you using?
I see .level = INFO in the jdk9/master sources: http://hg.openjdk.java.net/jdk9/jdk9/jdk/file/tip/src/java.logging/share/conf/logging.properties There should be no changes WRT the default level between 8 and 9. best regards, -- daniel On 09/11/2017 01:09, Jeremy Manson wrote:
Hey folks, I can't find reference to this in a relnote, so I thought I would ask. If we have the following files: logging.properties: # Set the level of the root logger .level = INFO # Send the root logger's output to the console .handlers = java.util.logging.ConsoleHandler Test.java: public class Test { public static void main(String[] args) { java.util.logging.Logger.getAnonymousLogger().info("Hi!"); } } In Java 8, we will see console output, and in Java 9, we won't. # Java 8 $ java -Djava.util.logging.config.file=logging.properties Test Nov 08, 2017 5:02:05 PM Test main INFO: Hi! # Java 9 $ java -Djava.util.logging.config.file=logging.properties Test I thought that, perhaps, a decision was made to have the empty string no longer mean the root logger, so I took it off of .handlers: logging.properties: # Set the level of the root logger .level = INFO # Send the root logger's output to the console handlers = java.util.logging.ConsoleHandler Success in the sense that this got me output in Java 9. However, .level still seems to work; if I then have: # Set the level of the root logger .level = WARNING # Send the root logger's output to the console handlers = java.util.logging.ConsoleHandler it sets the root logger's level to WARNING. I don't see any of this in a relnote anywhere, and I don't see an obvious bug about it anywhere. There seem to have been a fair few changes to java.util.logging in Java 9. Was a documented decision made to have .handlers stop meaning handlers on the root logger, but to allow .level to continue meaning level on the root logger? Or do I just have the wrong end of the stick on this? Thanks! Jeremy