How to copy to multiple destinations with Gradle copy task?

I am trying to copy one file to multiple destinations through a Gradle task. I found the following in other websites but I get an ERROR while running this task.

def filesToCopy = copySpec{
    from 'somefile.jar'
    rename {String fileName -> 'anotherfile.jar'}
}

task copyFile(type:Copy) {
    with filesToCopy  {
      into 'dest1/'
    }
    with filesToCopy  {
      into 'dest2/'
    }
}

ERROR

No signature of method: org.gradle.api.internal.file.copy.CopySpecImpl.call() is applicable for argument types

Is there a way to copy to multiple destinations in one Gradle task?

If you really want them in one task, you do something like this:

def filesToCopy = copySpec {
  from 'someFile.jar'
  rename { 'anotherfile.jar' }
}

task copyFiles << {
  ['dest1', 'dest2'].each { dest ->
    copy {
      with filesToCopy
      into dest
    }
  }
}