Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules jetified-guava-20.0 code example

Example: Duplicate class com.google.common.util.concurrent.ListenableFuture

configurations {
    // Resolves dependency conflict caused by some dependencies use
    // com.google.guava:guava and com.google.guava:listenablefuture together.
    all*.exclude group: 'com.google.guava', module: 'listenablefuture'
}