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RE: Apache Camel JAXB unmarshalling returns null properties after upgrade from Camel from 2.20.4 to 2.21.2 or 2.22.1


Hello again.
Sorry, for posting again, but it seems my digital signature cause problem. Did not expect that.

Lars

> Hi all.
> 
> Sorry for cross posting. I already asked this question on Stack Overflow
> before I found the mailing list:
> https://stackoverflow.com/questions/52716828/apache-camel-jaxb-unmarshalling-
> returns-null-properties-after-upgrade-from-camel
> 
> After upgrading Apache Camel from 2.20.4 to 2.21.2 or even 2.22.1 a unit test
> of my fails and I can't see why.
> 
> I have a route, which receives an XML response, which I want to unmarshal into
> a data class. This fails since Apache Camel 2.21.2.
> 
> The JAXB context knows all data classes in the given package and picks the
> right class. The unmarshaller creates the right object, but the properties
> stay null. With debugging the SAX parser, it seemed as if the SAX parser
> deliberately ignores the text between the tags.
> 
> I have seen on the Camel website that Camel 2.21.0 "Upgraded to JAXB 2.3.0". I
> don't know what that means for me.
> 
> My route looks like this:
> 
> @Component
> public class NewsletterRoute extends RouteBuilder {
> 
> 8<-------------------------------------------------
> 
> @Override
> public void configure() {
>     final DataFormat marshalFormat =
>         new JacksonDataFormat(HybrisRequest.class);
>     final JaxbDataFormat unmarshalFormat = new JaxbDataFormat();
>     unmarshalFormat.setContextPath(
>        SuccessResponse.class.getPackage().getName());
> 
>     from(URI)
>         .routeId("subscribeRoute")
>         // Fetch the auth token to send it as 'x-csrf-token' header.
>         .setHeader(Exchange.HTTP_URI,
>             method(this.backendUrlProvider, "getUrl"))
>         .setHeader(Exchange.HTTP_PATH,
>              constant(this.subscribeUnsubscribePath))
>         .setHeader(Exchange.HTTP_METHOD, HttpMethods.POST)
>         .setHeader(Exchange.CONTENT_TYPE, constant("application/json"))
>         // Marshal body to JSON
>         .marshal(marshalFormat)
>         .to(String.format("https4:backend" +
>                 "?sslContextParameters=hybrisSslContextParams" +
>                 "&x509HostnameVerifier=hybrisHostnameVerifier" +
>                 // don't throw on 3XX/4XX/5XX since
>                 // we need the response body
>                 "&throwExceptionOnFailure=false" +
>                 "&cookieStore=#hybrisCookieStore" +
>                 "&authUsername=%s" +
>                 "&authPassword=%s" +
>                 "&authenticationPreemptive=true" +
>                 "&httpClient.redirectsEnabled=true" +
>                 "&httpClient.maxRedirects=3" +
>                 "&httpClient.connectTimeout=%d" +
>                 "&httpClient.socketTimeout=%d",
>             "RAW(" + username + ")",
>             "RAW(" + password + ")",
>             backendTimeoutMillis,
>             backendTimeoutMillis))
>         .convertBodyTo(String.class)
>         // Store the received response as property before
>         // trying to unmarshal it
>         .setProperty(PROPERTY_RESPONSE_RAW, body())
>         .unmarshal(unmarshalFormat);
>     // @formatter:on
>     }
> }
> 
> 
> The data class looks like this
> 
> @XmlRootElement(name = "entry", namespace = "http://www.w3.org/2005/Atom";)
> public class SuccessResponse {
>     private String id;
>     private String title;
>     public String getId() { return id; }
>     public void setId(String id) { this.id = id; }
>     public String getTitle() { return title; }
>     public void setTitle(String title) { this.title = title; }
>     public String toString() { /*code cut out*/}
> }
> 
> 
> With Apache Camel 2.20.4 my unit test worked. With 2.21.2 and 2.22.1 it
> breaks. The problem is, that the unmarshaler won't fill the properties.
> 
> The unit test just sends a valid request to Mockito, which returns the XML.
> 
> <?xml version="1.0" encoding="utf-8"?>
> <entry
> xml:base="https://xxx.xxx.xxx.xxx:44380/sap/opu/odata/sap/CUAN_IMPORT_SRV
> /"
>     xmlns="http://www.w3.org/2005/Atom";
>     xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata";
>     xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices";>
> <!-- 8<---------- Code cut out here ----------------------------------- -->
>     <id>bla</id>
>     <title type="text">blub</title>
> </entry>
> 
> 
> Any ideas?
> 
> Thanks
> Lars