Hi, Please find below a patch for:
8159245: Loggers created by system classes are not initialized correctly when configured programmatically from application code. Issue: https://bugs.openjdk.java.net/browse/JDK-8150173 Patch: http://cr.openjdk.java.net/~dfuchs/webrev_8159245/webrev.00/index.html When an application requests a logger by name, we do not know before hand whether that corresponds to a system logger name or not. So if no system logger by that name already exists, we simply return an application logger. The issue happens if a system class later requests a system logger of the same name. The current implementation would simply copy over the user logger handlers to the system logger, ignoring any other data (level, filter, flags) that might have been set by the application (with permission checks) prior to the creation of the system logger. The proposed patch ensures instead that if a system class later requests a system logger of the same name, then the application logger and system logger configurations will be merged in a single instance of a private static Logger$ConfigurationData value class that both loggers will share. A new test is added to verify that the configuration issue is fixed in the various possible configuration cases: - parent of system logger created by the application before system logger exists, - parent of system logger created by the application after system logger exists, - logger created by the application before system logger of the same name exists - logger created by the application after system logger of the same name exists - all of the above with and without a security manager. The new test will fail without the fix and pass with it. best regards, -- daniel