Hi,

I am trying to unmarshall a xml which is produced by castor.
I tried both having and not having mapping files and it all failed to
unmarshal.
Here is the xml:
<?xml version="1.0" encoding="UTF-8"?>
<resources>
        <resource>
                <resource-file>fake address 1</resource-file>
                <description-name>spiderman</description-name>
                <time-of-creation>2009-10-10</time-of-creation>
                <owner>huangp</owner>
                <comment>good one</comment>
                <category>category 1</category>
                <size>1g</size>
                <file-names>spiderman1.rmvb</file-names>
                <file-names>spiderman2.rmvb</file-names>
        </resource>
        <resource>
                <resource-file>fake address 2</resource-file>
                <description-name>superman</description-name>
                <time-of-creation>2009-10-11</time-of-creation>
                <owner>huangp</owner>
                <comment>bad one</comment>
                <category>category 1</category>
                <size>200m</size>
                <file-names>superman a.rmvb</file-names>
                <file-names>superman b.rmvb</file-names>
        </resource>
</resources>

Here is the mapping:
<class name="huangp.domain.Resource">
        <map-to xml="resource" />
        <field name="resourceFile" type="string" />
        <field name="descriptionName" type="string" />
        <field name="timeOfCreation" type="string" />
        <field name="owner" type="string" />
        <field name="comment" type="string" />
        <field name="category" type="string" />
        <field name="size" type="string" />
        <field name="fileNames" type="string" collection="arraylist">
                <bind-xml name="file-names" />
        </field>
</class>

<!-- mapping for class 'huangp.domain.Resources' -->
<class name="huangp.domain.Resources">
        <field name="resource" type="huangp.domain.Resource"
collection="arraylist">
                <bind-xml name="resource" />
        </field>
</class>

Exception trace:
org.exolab.castor.xml.MarshalException: Nested error:
java.lang.NullPointerException{File: [not available]; line: 11; column: 43}

Resources class only have one field which is a List<Resource>. Resource
class has detailed fields and it contains another List<String> fileNames. I
suspect it is to do with this nested list? Can anyone please help? BTW I
can't access castor site since yesterday...

Big thank you.

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