final DOMTransactionChain transactionChain = mock(DOMTransactionChain.class);
final DOMDataWriteTransaction wTx = mock(DOMDataWriteTransaction.class);
- final CheckedFuture checked = Futures.immediateCheckedFuture("");
+ final CheckedFuture<Void, TransactionCommitFailedException> checked = Futures.immediateCheckedFuture(null);
when(wTx.submit()).thenReturn(checked);
when(transactionChain.newWriteOnlyTransaction()).thenReturn(wTx);
final TransactionChainHandler transactionChainHandler = new TransactionChainHandler(transactionChain);