how to uglify javascript files and css files using gradle task -

i using gradle spring mvc project. have lots of javascript , css files. using grunt know how uglify , minify them gradle find minify , gzip.

 "com.eriwen.gradle.js".  gzipjs {    source = minifyjs    dest = file("${builddir}/all-min.js") }  minifyjs {    source = combinejs    dest = file("${builddir}/all-min.js")    sourcemap = file("${builddir}/all.sourcemap.json")    closure {      warninglevel = 'quiet'    } } 

only 2 see making files smaller. or there other way of producing same effects uglify does.