Hi Daniel, I think we just need to add a test where a subclass logger logs the message with the root logger as the parent. Should be no need to register that logger with the LogManager. Not sure if it is worth checking that custom filters installed on handlers or logger and or formatters fool anything. Regards, Jason ________________________________________ From: core-libs-dev <core-libs-dev-bounces@openjdk.java.net> on behalf of Daniel Fuchs <daniel.fuchs@oracle.com> Sent: Tuesday, March 22, 2016 10:03 AM To: core-libs-dev Subject: RFR: 8152436: Add a test to verify that the root logger correctly reports the caller's information Hi, Please find below a new test that verifies that JDK-8152389 does not occur in JDK 9. bug: 8152436: Add a test to verify that the root logger correctly reports the caller's information https://bugs.openjdk.java.net/browse/JDK-8152436 Issue being verified by the test: https://bugs.openjdk.java.net/browse/JDK-8152389 Webrev (test only): http://cr.openjdk.java.net/~dfuchs/webrev_8152436/webrev.00/ best regards, -- daniel