Includes and excludes using closures don't work in the Copy task. The following example does not work:

task (copy, type:Copy) {
   from 'src'
   into 'dest'
   exclude { fte ->
      fte.file.name == 'bad.file'
   }
}

The include and exclude closures are supported by PatternFilterable, but the Copy tasks extracts a new composite PatterSet from the hierarchical CopySpec before actually doing the copy and extraction of the Spec forms of include and exclude was never added.

I will add an integration test for this.