
I found the answer myself When using jetty-maven-plugin, the value of RequestLogImpl's "fileName" property is relative to the project's pom.xml . So for instance, when the Maven project layout is like this: ~~~Begin: Maven project layout~~~ |-pom.xml |-[src] | |-.... | |-[logback-access-config] | |-logback-access-localhost.xml | |-... ~~~End: Maven project layout~~~ ... then my correct jetty XML configuration file looks like this: ~~~Begin: jetty XML configuration file~~~ <Configure id="Server" class="org.eclipse.jetty.server.Server"> ... <Set name="handler"> <New id="Handlers" class="org.eclipse.jetty.server.handler.HandlerCollection"> <Set name="handlers"> <Array type="org.eclipse.jetty.server.Handler"> <Item> <New id="Contexts" class="org.eclipse.jetty.server.handler.ContextHandlerCollection"/> </Item> <Item> <New id="DefaultHandler" class="org.eclipse.jetty.server.handler.DefaultHandler"/> </Item> <!-- add a RequestLogHandler --> <Item> <New id="RequestLogHandler" class="org.eclipse.jetty.server.handler.RequestLogHandler"/> </Item> </Array> </Set> </New> </Set> <Ref id="RequestLogHandler"> <Set name="requestLog"> <New id="requestLogImpl" class="ch.qos.logback.access.jetty.RequestLogImpl"> <!-- fileName's path is relative to pom.xml --> <Set name="fileName">logback-access-config/logback-access-localhost.xml</Set> </New> </Set> </Ref> ... </Configure> ~~~End: jetty XML configuration file~~~ Cheers