Daniel, As long as the org.apache.juli.ClassLoaderLogManager overrides getProperty it shouldn't really matter what the value format is in the file as long as it is translated on return. Is there a code path in j.u.l.LogManager that doesn't call getProperty? If so I would think that is the core issue.
Jason ________________________________________ From: core-libs-dev <core-libs-dev-boun...@openjdk.java.net> on behalf of Daniel Fuchs <daniel.fu...@oracle.com> Sent: Thursday, January 18, 2018 9:12 AM To: core-libs-dev Subject: [JDK 11] RFR: 8195096: Exception printed on console with custom LogManager on starting Apache Tomcat Hi, Please find below a proposed fix for: 8195096: Exception printed on console with custom LogManager on starting Apache Tomcat https://bugs.openjdk.java.net/browse/JDK-8195096 webrev: http://cr.openjdk.java.net/~dfuchs/webrev_8195096/webrev.00/ The issue appeared after the fix for https://bugs.openjdk.java.net/browse/JDK-8191033 8191033: Regression in logging.properties: specifying .handlers= for root logger (instead of handlers=) no longer works Tomcat is apparently reusing the ".handlers" property, to specify class names in a format that the LogManager cannot understand (hence the exceptions logged on the console). The proposed fix is to add a protected hook that subclass of LogManager could extend to turn off parsing of the ".handler" property. best regards, -- daniel