Issue 1317: Fix address books appreaing repeatedly

                    result.add(

                            typeProvider.getTypeForAccount(account).wrapAccount(mContext, account));

                }

                filterDuplicateAccounts(result);

                AccountInfo.sortAccounts(null, result);

                return result;

            }

        }, MoreExecutors.directExecutor());

    }

    private void filterDuplicateAccounts(List<AccountInfo> accountList) {

        final List<AccountInfo> uniqueList = new ArrayList<>();

        for (AccountInfo resultInfo: accountList) {

            final boolean isPresent = uniqueList.stream().anyMatch(resultInfo::sameAccount);

            if (!isPresent) {

                uniqueList.add(resultInfo);

            }

        }

        accountList.clear();

        accountList.addAll(uniqueList);

    }

    @Override

    public ListenableFuture<List<AccountInfo>> filterAccountsAsync(

            final Predicate<AccountInfo> filter) {