<!-- use of enviroment variables --> <!-- to work, jarsignerpassword in the environment must be lower case, to match exactly the ant script --> <property environment="env" /> <echo message="password is ${env.jarsignerpassword}" /> <signjar jar="com/mindprod/vercheck/vercheck.jar" alias="${env.cert}" storepass="${env.jarsignerpassword}" verbose="true" />