title: Read the logback.xml from a system variable value
body: <p>I have a project that I built it using maven jar plugin.For logging i am using logback.and I want my logback.xml be out of the executableJar.For reading the logback.xml i have set a new environment variable with a value that i put my logback.xml in it.how can I tell my project to go use this variable in order to find the config file? </p>