title: Using log4j in Swing application
body: <p>Our Swing application doesn't limit the number of application instance user opens that is user can run as many app instances as he likes by accessing JWS link more than once. Here my question is if I use log4j for logging many app instances(jvm) will share the same log file, right? Are there any lock issue for this or these app instances can write their logs into the same log file without conflict?</p>