Problem with DOMResult - Content is not allowed in prolog

**dr_pompeii** · Jul 11th, 2011, 12:38 PM

Hello Guys

I have the follow code (match the colors yourself for a better understanding)

Code:

@Component
public class Cliente  {	
	
	private static final long serialVersionUID = 1L;
	
	private String nombres;
	private String apellidos;
	private Integer edad;
	private Double peso;
	private BigDecimal credito;
	private Date fechaNacimiento;
	
	public Cliente(){
		
	}
        ... setters/getters and toString()
}

@Bean
public CastorMarshaller castorMarshaller(){
	return new CastorMarshaller();
}

<int-xml:marshalling-transformer 
            marshaller="castorMarshaller"
	    result-type="StringResult"
	    input-channel="input"
	    output-channel="xml"									 								 	
	/>
	
<int-xml:unmarshalling-transformer 
            unmarshaller="castorMarshaller"
	    input-channel="xml-string"
	    output-channel="output"
	/>
	
<int:object-to-string-transformer 
      input-channel="xml"
      output-channel="xml-string" />

...

<int:channel id="xml">
	<int:interceptors>
		<int:wire-tap channel="logger01"/>
	</int:interceptors>
</int:channel>

The code work , in my Main class I have

Code:

MessageChannel input = context.getBean("input", MessageChannel.class );
PollableChannel output = context.getBean("output", PollableChannel.class );
	
Cliente cliente = new Cliente();		
cliente.setNombres("Manuel");
cliente.setApellidos("Jordan");		
cliente.setEdad(30);		
cliente.setPeso(70.01);
cliente.setCredito(new BigDecimal("150.85"));
cliente.setFechaNacimiento( new Date());

Message<?> messageAltern01 = MessageBuilder.withPayload(cliente).build();
input.send(messageAltern01);
		
Message<?> replyAltern01 = output.receive();		
logger.info("Mensaje Recibido replyAltern01.toString(){}", replyAltern01.toString());

I can confirm through the logging-channel-adapter and wire-tap the follow ( I am changing the presentation to let show the output friendly)

Code:

2011-07-11 12:19:30,329 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=<?xml version="1.0" encoding="UTF-8"?>
<cliente>
<apellidos>Jordan</apellidos>
<fecha-nacimiento>2011-07-11T12:19:29.923-05:00</fecha-nacimiento><nombres>Manuel</nombres>
<peso>70.01</peso>
<edad>30</edad>
<credito>150.85</credito>
</cliente>]
[Headers={timestamp=1310404770329, 
id=4c20555b-0e1b-4292-bdd9-4baa3d99e449}]>

Therefore the transformation is well done

The problem is if I change only one line

Code:

<int-xml:marshalling-transformer 
            marshaller="castorMarshaller"
	    result-type="DOMResult"
	    input-channel="input"
	    output-channel="xml"								 	
	/>

DOMResult is the default used by Spring Integration

I get this output error ( I am changing the presentation to let show the output friendly)

Code:

...
2011-07-11 12:28:34,563 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=javax.xml.transform.dom.DOMResult@179953c]
[Headers={timestamp=1310405314563, id=87444587-14d3-41a8-b15b-439d6e44f1c8}]>

2011-07-11 12:28:34,563 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=javax.xml.transform.dom.DOMResult@179953c]
[Headers={timestamp=1310405314563, id=d5fae7c1-42a8-4022-8d59-c658e8f87cf3}]>

Exception in thread "main" org.springframework.integration.transformer.MessageTransformationException: 
failed to transform message
	at org.springframework.integration.transformer.AbstractTransformer.transform(AbstractTransformer.java:44)
...

Caused by: org.springframework.oxm.UnmarshallingFailureException: 
Castor unmarshalling exception; nested exception is 
org.exolab.castor.xml.MarshalException: 
Content is not allowed in prolog.{File: [not available]; line: 1; column: 1}
	at org.springframework.oxm.castor.CastorMarshaller.convertCastorException(CastorMarshaller.java:487)
...

Caused by: org.exolab.castor.xml.MarshalException: 
Content is not allowed in prolog.{File: [not available]; line: 1; column: 1}
	at org.exolab.castor.xml.Unmarshaller.convertSAXExceptionToMarshalException(Unmarshaller.java:761)
...

Caused by: org.xml.sax.SAXParseException: 
Content is not allowed in prolog.
	at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)

What is wrong or missing on my Configuration?, it could be this be a bug?

Bear in mind I just changed StringResult to DOMResult

Thanks in advanced

**oleg.zhurakousky** · Jul 11th, 2011, 12:42 PM

it seems like Castor has problem with your XML

org.exolab.castor.xml.MarshalException:
Content is not allowed in prolog.{File: [not available]; line: 1; column: 1}

Could you try to create DOMResult and send it to Castor outside of SI, just to verify?

**dr_pompeii** · Jul 11th, 2011, 12:54 PM

Hello Oleg

Thanks again for the reply

it seems like Castor has problem with your XML

Seems yes or perhaps is org.springframework.oxm.castor.CastorMarshaller

I am working with

Code:

<!-- Castor -->
<dependency>
	<groupId>org.codehaus.castor</groupId>
 	<artifactId>castor</artifactId>
    	<version>1.2</version>
</dependency>
<!-- Castor - Xerces -->		
<dependency>
    	<groupId>xerces</groupId>
    	<artifactId>xercesImpl</artifactId>
    	<version>2.9.1</version>
</dependency>

The last availables for each one

Could you try to create DOMResult and send it to Castor outside of SI, just to verify?

Something similar to this?

Code:

public class EchoTransformer {

	public Node asDOMNode(DOMResult o) {
		Node node = o.getNode();
		System.out.println("** Log: Inside Transformer");
		System.out.println(node);
		System.out.println("**");
		return node;
	}
	public String asString(Object o) {
		String str = o.toString();
		System.out.println("** Log: Inside Transformer");
		System.out.println(str);
		System.out.println("**");
		return str;
	}
}

I am taking referencing from this thread, If I am wrong pls let me know
Thread: marshalling-transformer returns null for DOMResult and xml for StringResult

Thank you

**oleg.zhurakousky** · Jul 11th, 2011, 01:00 PM

Well, i still think its your XML as it all comes down to this:

Caused by: org.xml.sax.SAXParseException:
Content is not allowed in prolog.
at org.apache.xerces.util.ErrorHandlerWrapper.createS AXParseException(Unknown Source)

Why do you need to specify xerses dependency in the first place? Its part of JDK since 1.5 right?

**dr_pompeii** · Jul 11th, 2011, 01:07 PM

Hello Oleg

Well, i still think its your XML as it all comes down to this:

Agree

Why do you need to specify xerses dependency in the first place? Its part of JDK since 1.5 right?

I am working with STS 2.6.1 and using jdk1.6.0_21

I though like you about only adding the Castor dependency but I receive this exception when I try to run my application

Code:

Caused by: java.lang.RuntimeException: 
Could not instantiate serializer org.apache.xml.serialize.XMLSerializer: 
java.lang.ClassNotFoundException: org.apache.xml.serialize.XMLSerializer
  at org.exolab.castor.xml.XercesSerializer.<init>(XercesSerializer.java:50)

**oleg.zhurakousky** · Jul 11th, 2011, 01:13 PM

Can you try to upgrade to castor 1.3.2 ?

**dr_pompeii** · Jul 11th, 2011, 01:28 PM

Hello Oleg

Can you try to upgrade to castor 1.3.2 ?

I tried but we have a problem, STS use MvnRepository

And from there doing a simple search with org.codehaus.castor pattern
and selecting from the result list

Castor
org.codehaus.castor » castor

I go to

home » org.codehaus.castor » castor

Where is shown

Code:

Available versions

Version      Type               Download
1.3.2        release 	        Binary (0 bytes)
1.3.1        release 	        Binary (0 bytes)
1.3.0.1      release 	        Binary (0 bytes)
1.3          release 	        Binary (0 bytes)
1.3rc1       release candidate 	Binary (0 bytes)
1.2          release 	        Binary (845 KB)

Therefore if I select 1.3.2 my STS output console show

Code:

11/07/11 01:16:32 PM COT: Missing artifact org.codehaus.castor:castor:jar:1.3.2:compile
11/07/11 11:28:53 AM COT: Downloaded http://repository.codehaus.org/com/springsource/bundlor/com.springsource.bundlor.maven/1.0.0.RELEASE/com.springsource.bundlor.maven-1.0.0.RELEASE.pom
11/07/11 11:28:53 AM COT: [WARN] The POM for com.springsource.bundlor:com.springsource.bundlor.maven:jar:1.0.0.RELEASE is missing, no dependency information available
11/07/11 12:19:28 PM COT: [WARN] The POM for com.springsource.bundlor:com.springsource.bundlor.maven:jar:1.0.0.RELEASE is missing, no dependency information available
11/07/11 12:28:32 PM COT: [WARN] The POM for com.springsource.bundlor:com.springsource.bundlor.maven:jar:1.0.0.RELEASE is missing, no dependency information available
11/07/11 12:32:20 PM COT: [WARN] The POM for com.springsource.bundlor:com.springsource.bundlor.maven:jar:1.0.0.RELEASE is missing, no dependency information available
11/07/11 12:33:02 PM COT: [WARN] The POM for com.springsource.bundlor:com.springsource.bundlor.maven:jar:1.0.0.RELEASE is missing, no dependency information available
11/07/11 01:16:30 PM COT: Refreshing [/integrationtransformationsenrichment/pom.xml]
11/07/11 01:16:32 PM COT: Downloaded http://repo1.maven.org/maven2/org/codehaus/castor/castor/1.3.2/castor-1.3.2.jar

Thats why I use 1.2

How I should handle this?

**oleg.zhurakousky** · Jul 11th, 2011, 01:38 PM

Strange, i got the same error
Could you place a question on Castor mailing list http://www.castor.org/news.html and see what they say?

**dr_pompeii** · Jul 11th, 2011, 01:41 PM

Strange, i got the same error
Could you place a question on Castor mailing list http://www.castor.org/news.html and see what they say?

OK, it will be done, I will share the reply here

Best Regards

**dr_pompeii** · Jul 11th, 2011, 07:06 PM

I have problems

I already did my subscription to http://xircles.codehaus.org/ which is required to send emails to

user@castor.codehaus.org - User mailing list
dev@castor.codehaus.org - Development mailing list

But I always got

Hi. This is the qmail-send program at mail.codehaus.org.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<dev@castor.codehaus.org>:
Sorry, only subscribers may post. If you are a subscriber, please forward this message to dev-owner@castor.codehaus.org to get your new address included. (#5.7.2)

and

Hi. This is the qmail-send program at mail.codehaus.org.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<user@castor.codehaus.org>:
Sorry, only subscribers may post. If you are a subscriber, please forward this message to user-owner@castor.codehaus.org to get your new address included. (#5.7.2)

I already sent to the two emails suggested but none reply yet

Even I sent an email to two committers and nothing

This is out of my hands

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