Hi:
  
In the new Petstore application we use JAX-RPC to communicate between the OPC and the Supplier applications. The OPC sends an XML document as an attchament to the SOAP message.
The XML document contains a document type declaration which refers to an external DTD. When the SOAP message is constructed the XML document attachment
is reserialized and the external DTD is inlined (as an internal DTD subset) in the XML document. The attachment also contains a document type declaration to the original external DTD. So they are 2 declartions: to the original external DTD and the inlined version of the original external DTD (as an internal DTD subset).

Ex:

Original document:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE SupplierOrder PUBLIC "-//Sun Microsystems, Inc. - J2EE Blueprints Group//DTD TPA-SupplierOrder 1.0//EN" "http://localhost:8080/opc/schemas/TPASupplierOrder.dtd">
<SupplierOrder>
<OrderId>10019</OrderId>
<OrderDate>Wed May 29 14:42:00 PDT 2002</OrderDate>
<ShippingAddress>
<FirstName>ABC</FirstName>
<LastName>XYZ</LastName>
<Street>1234 Anywhere Street</Street>
<City>Palo Alto</City>
<State>California</State>
<Country>USA</Country>
<ZipCode>94303</ZipCode>
<Email>NULL</Email>
<Phone>NULL</Phone>
</ShippingAddress>
<LineItems>
<LineItem categoryId="BIRDS" itemId="EST-18" lineNo="0" productId="AV-CB-01" quantity="1" unitPrice="193.5"/>
</LineItems>
</SupplierOrder>


SOAP message sent:

------=_Part_5_7321359.1022707919742
Content-Type: text/xml

<?xml version="1.0" encoding="UTF-8"?>
<soap-env:Envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/"><soap-env:Header/><soap-env:Body/></soap-env:Envelope>
------=_Part_5_7321359.1022707919742
Content-Type: text/xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE SupplierOrder PUBLIC "-//Sun Microsystems, Inc. - J2EE Blueprints Group//DTD TPA-SupplierOrder 1.0//EN" "http://localhost:8080/opc/schemas/TPASupplierOrder.dtd" [
<!ELEMENT SupplierOrder (OrderId,OrderDate,ShippingAddress,LineItems)>
<!ELEMENT OrderId (#PCDATA)>
<!ELEMENT OrderDate (#PCDATA)>
<!ELEMENT ShippingAddress (FirstName,LastName,Street,City,State,Country,ZipCode,Email,Phone)>
<!ELEMENT FirstName (#PCDATA)>
<!ELEMENT LastName (#PCDATA)>
<!ELEMENT Street (#PCDATA)>
<!ELEMENT City (#PCDATA)>
<!ELEMENT State (#PCDATA)>
<!ELEMENT Country (#PCDATA)>
<!ELEMENT ZipCode (#PCDATA)>
<!ELEMENT Email (#PCDATA)>
<!ELEMENT Phone (#PCDATA)>
<!ELEMENT LineItems (LineItem+)>
<!ELEMENT LineItem EMPTY>
<!ATTLIST LineItem categoryId CDATA #REQUIRED>

productId CDATA #REQUIRED>

itemId CDATA #REQUIRED>

lineNo CDATA #REQUIRED>

quantity CDATA #REQUIRED>

unitPrice CDATA #REQUIRED>
]>
<SupplierOrder>
<OrderId>10017</OrderId>
<OrderDate>Wed May 29 14:31:00 PDT 2002</OrderDate>
<ShippingAddress>
<FirstName>ABC</FirstName>
<LastName>XYZ</LastName>
<Street>1234 Anywhere Street</Street>
<City>Palo Alto</City>
<State>California</State>
<Country>USA</Country>
<ZipCode>94303</ZipCode>
<Email>NULL</Email>
<Phone>NULL</Phone>
</ShippingAddress>
<LineItems>
<LineItem categoryId="BIRDS" itemId="EST-18" lineNo="0" productId="AV-CB-01" quantity="1" unitPrice="193.5"/>
</LineItems>
</SupplierOrder>
------=_Part_5_7321359.1022707919742--

Not only the DTD is wrongly inlined but it is also wronlgy formatted, adding an unwanted ">" at the end of every single ATTRIBUTE definition:

<!ATTLIST LineItem categoryId CDATA #REQUIRED> <<<<here

productId CDATA #REQUIRED> <<<<here

itemId CDATA #REQUIRED> <<<<here

lineNo CDATA #REQUIRED> <<<<here

quantity CDATA #REQUIRED> <<<<here

unitPrice CDATA #REQUIRED>


Regards

Thierry & Ramesh