src/main/java/software/amazon/qldb/tutorial/model/streams/BlockSummaryRecord.java [71:79]:
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    @Override
    public String toString() {
        return "JournalBlock{"
                + "blockAddress=" + blockAddress
                + ", transactionId='" + transactionId + '\''
                + ", blockTimestamp=" + blockTimestamp
                + ", blockHash=" + Arrays.toString(blockHash)
                + ", entriesHash=" + Arrays.toString(entriesHash)
                + ", previousBlockHash=" + Arrays.toString(previousBlockHash)
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src/main/java/software/amazon/qldb/tutorial/qldb/JournalBlock.java [116:124]:
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    @Override
    public String toString() {
        return "JournalBlock{"
                + "blockAddress=" + blockAddress
                + ", transactionId='" + transactionId + '\''
                + ", blockTimestamp=" + blockTimestamp
                + ", blockHash=" + Arrays.toString(blockHash)
                + ", entriesHash=" + Arrays.toString(entriesHash)
                + ", previousBlockHash=" + Arrays.toString(previousBlockHash)
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