This was added in an earlier commit (57b2b4b8) to speed up the Trade
History view, via the method 'getConfidenceFotTxId(String)', by
replacing a linear scan of the live wallet txs with a lookup into a
lazily initialised map. However, the delegating 'WalletService' method
'getTransaction(Sha256Hash)' already serves this purpose, with
'o.b.w.Wallet' itself maintaining a map of all the wallet txs. Use that
method instead, taking care to exclude dead txs from the lookups, to
exactly preserve the current behaviour.
Also do some minor cleanup of the class, mainly to remove IDE warnings.
Bisq is a safe, private and decentralized way to exchange bitcoin for national currencies and other digital assets. Bisq uses peer-to-peer networking and multi-signature escrow to facilitate trading without a third party. Bisq is non-custodial and incorporates a human arbitration system to resolve disputes.
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