doLast
Note, that in a gradle 3.x more idiomatic way task definition: using explicit doLast{closure} notation instead "leftShift"(<<) operator preferable.(leftShift has been deprecated in a gradle 3.2 is scheduled to be removed in gradle 5.0.)
task oldStyle << {
println 'Deprecated style task'
}
is equivalent to:
task newStyle {
doLast {
println 'Deprecated style task'
}
}