public final int indexOf(V value){
  if (GWT.isScript()) {
    return jsArray.indexOf(value);
  }
 else {
    return javaArray.indexOf(value);
  }
}

public final int indexOf ( V value ) { if ( GWT . isScript ( ) ) { return jsArray . indexOf ( value ) ; } else { return javaArray . indexOf ( value ) ; } }
retrieve the position of the given element on this list .
