If you are using a Tomcat server that is started with server.startup.bat, the default xxx.log file location is Install Dir/server/logs.
If you are using IBM® WebSphere® Application Server, the default xxx.log file location is WebSphere Install Dir/profiles/AppSrv01/logs.
The location of the xxx log file is determined by the log4j.properties file in the JAZZ_HOME/xxx directory. The default setting for the xxx.log file is log4j.appender.logfile.File=logs/xxx.log. For example, the default setting for the jts.log file is log4j.appender.file.File=logs/jts.log.