code: public Observable<Page<ManagementLockObjectInner>> listNextAsync(final String nextPageLink) {
          return listNextWithServiceResponseAsync(nextPageLink)
              .map(new Func1<ServiceResponse<Page<ManagementLockObjectInner>>, Page<ManagementLockObjectInner>>() {
                  @Override
                  public Page<ManagementLockObjectInner> call(ServiceResponse<Page<ManagementLockObjectInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Gets all the management locks for a subscription.
  
  @param nextPageLink The NextLink from the previous successful call to List operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;ManagementLockObjectInner&gt; object