Missing collection item when they are not wrapped during unmarshal with multiple namespaces

[wanchongtai]

1. I have the following xml to unmarshal

<?xml version="1.0" encoding="utf-8"?>
<customer xmlns="http://www.archer-tech.com/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <customerId>1</customerId>
    <customerName>Michael Judy</customerName>
    <account>
        <accountId>100</accountId>
        <accountName>Michael</accountName>
        <postcode xsi:nil="true"></postcode>
    </account>
    <account>
        <accountId>200</accountId>
        <accountName>Judy</accountName>
        <postcode xsi:nil="true"></postcode>
    </account>	
</customer>

2. domains

@JacksonXmlRootElement(localName = "customer")
public class CustomerWithoutWrapper {
    Long customerId;
    String customerName;

    @JacksonXmlElementWrapper(useWrapping = false)
    List<Account> account = new ArrayList<>();
...setter/getter...
}

public class Account {
    Long accountId;
    String accountName;
    String postcode;
...setter/getter...
}

3. unmarshal process

        ObjectMapper objectMapper = new XmlMapper();
        CustomerWithoutWrapper customerWithOutWrapper =
                objectMapper.readValue(getCustomerWithoutWrapperXml(), CustomerWithoutWrapper.class);

4. result

there is not exception, however only the last account item is kept. the first account item is missing from account collection after unmarshalling

incorrect result

CustomerWithoutWrapper{customerId=1, customerName='Michael Judy', account=[Account{accountId=200, accountName='Judy', postcode=''}]}

5. however when account items are wrapped as following, and change the domain mapping accordingly, then Jackson can unmarshall xml correctly.
   e.g.

<?xml version="1.0" encoding="utf-8"?>
<customer xmlns="http://www.archer-tech.com/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<customerId>1</customerId>
	<customerName>Michael Judy</customerName>
	<accounts>
		<account>
			<accountId>100</accountId>
			<accountName>Michael</accountName>
			<postcode xsi:nil="true"></postcode>
		</account>
		<account>
			<accountId>200</accountId>
			<accountName>Judy</accountName>
			<postcode xsi:nil="true"></postcode>
		</account>	
	</accounts>
</customer>

@JacksonXmlRootElement(localName = "customer")
public class CustomerWithWrapper {
    Long customerId;

    String customerName;

    @JacksonXmlElementWrapper(localName = "accounts")
    List<Account> account = new ArrayList<>();
...
}

result - correct when accounts are wrapped.

CustomerWithWrapper{customerId=1, customerName='Michael Judy', account=[Account{accountId=100, accountName='Michael', postcode=''}, Account{accountId=200, accountName='Judy', postcode=''}]}

[wanchongtai]

re-attach xml file content

1 Michael Judy 100 Michael 200 Judy ====

[cowtowncoder]

This will be fixed in 2.12.0; added a test to verify; test failed for 2.11 branch.