Parse successful
<?xml version="1.0" encoding="ISO-8859-1"?>
<Dataset xmlns="http://xml.opendap.org/ns/DAP/4.0#" xml:base="file:dap4/test_array_9.xml" dapVersion="4.0" dmrVersion="1.0" name="test_array_9">
    <Int32 name="i">
        <Dim size="5"/>
    </Int32>
    <Int32 name="x">
        <Dim size="0"/>
        <Dim size="4"/>
    </Int32>
</Dataset>

<?xml version="1.0" encoding="ISO-8859-1"?>
<Dataset xmlns="http://xml.opendap.org/ns/DAP/4.0#" xml:base="file:dap4/test_array_9.xml" dapVersion="4.0" dmrVersion="1.0" name="test_array_9">
    <Int32 name="i">
        <Dim size="5"/>
        <Attribute name="DAP4_Checksum_CRC32" type="String">
            <Value>33fc3688</Value>
        </Attribute>
    </Int32>
    <Int32 name="x">
        <Dim size="0"/>
        <Dim size="4"/>
        <Attribute name="DAP4_Checksum_CRC32" type="String">
            <Value>00000000</Value>
        </Attribute>
    </Int32>
</Dataset>

The data:
{ {123456789, 123456789, 123456789, 123456789, 123456789}, {} }