LocalReadOnlyProxyTransaction extends LocalProxyTransaction { @Override void doWrite(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) { throw new UnsupportedOperationException("doWrite"); } LocalReadOnlyProxyTransaction(final ProxyHistory parent, final TransactionIdentifier identifier,
        final DataTreeSnapshot snapshot);   LocalReadOnlyProxyTransaction(final ProxyHistory parent, final TransactionIdentifier identifier);   }
@Test(expected = UnsupportedOperationException.class) public void testDoWrite() { transaction.doWrite(PATH_1, DATA_1); }