jar using ant tool Vs jar using jar utility avail with jdk
Are there any difference between the jar file created using ant tool and creating manually with the help of jar utility, available with jdk. Because there is a size difference when I modify a jar file its size gets reduced by half.
Jar file has 600 kb. I extract it and replace it with the modified file (though I can use mf option). When I do jarring again that jar only shows 312 kb. I could not find out what exactly went wrong.