public BaseCollectionPage(final List<T1> pageContents,final T2 nextRequestBuilder){
  mPageContents=Collections.unmodifiableList(pageContents);
  mRequestBuilder=nextRequestBuilder;
}

public BaseCollectionPage ( final List < T1 > pageContents , final T2 nextRequestBuilder ) { mPageContents = Collections . unmodifiableList ( pageContents ) ; mRequestBuilder = nextRequestBuilder ; }
creates the collection page .
