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POJAXB unmarshal has always null value for nested object
 

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    <p>I have a web-service, defined by writing its WSDL and underlaying XSD, and the java server code classes / java bindings were generated using JAXB/xjc.</p> <p>Everything looks fine service is running properly... but for every request (looking well-formed after receiving when looking on log-output) the nested elements seem to be always null when accessing through my java code.</p> <p>Can someone figure out why customerId.getCustomer() always returns null?</p> <h2>My XSD (partly):</h2> <pre class="lang-xml prettyprint-override"><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;schema xmlns:tip="http://example.org/tip" xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://example.org/tip/pro"&gt; &lt;complexType name="id"&gt; &lt;attribute name="id" type="int" use="required"/&gt; &lt;attribute name="name" type="string" use="optional"/&gt; &lt;/complexType&gt; &lt;complexType name="customer_id"&gt; &lt;sequence&gt; &lt;element name="customer" type="tip:id" minOccurs="0"/&gt; &lt;/sequence&gt; &lt;/complexType&gt; &lt;element name="get_customer_request" type="tip:customer_id"/&gt; &lt;/schema&gt; </code></pre> <h2>The generated class CustomerId:</h2> <pre class="lang-java prettyprint-override"><code>@XmlAccessorType(XmlAccessType.FIELD) @XmlType(name = "customer_id", propOrder = {"customer"}) public class CustomerId { protected Id customer; public Id getCustomer() { return customer; } public void setCustomer(Id value) { this.customer = value; } } </code></pre> <p>The generated class for Id look similar, I don't think there is something special. In my request handler I got the following extract:</p> <h2>Handler:</h2> <pre class="lang-java prettyprint-override"><code>JAXBElement&lt;?&gt; request = requestHandler.unmarshallRequest(inputStream); Object jaxbClass = request.getDeclaredType(); expectedClass = CustomerId.class; // next line does not throw exception with given XML if (jaxbClass != expectedClass) throw new IllegalArgumentException(); CustomerId customerId = (CustomerId)request.getValue(); if (customerId == null) { logInfo("customerId: null"); } else if (customerId.getCustomer() == null) { // this is the part that always will be executed... why? logInfo("customerId.customer: null"); } else { logInfo("customer id: " + customerId.getCustomer().getId()); // return mbean.getCustomer(customerId); } </code></pre> <h2>And finally an example request XML:</h2> <pre class="lang-xml prettyprint-override"><code>&lt;?xml version="1.0" encoding="ISO-8859-1"?&gt; &lt;m:get_customer_request xmlns:m="http://example.org/tip/pro"&gt; &lt;customer id="0" name="help"/&gt; &lt;/m:get_customer_request&gt; </code></pre> <p>I stripped out SOAP envelope and body tags, since this is not causing any trouble. Can anyone see, what I am doing wrong? (I am pretty sure, I do...) Thanks for your effords!</p>
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    1. COIf you marshal out an instance of your object what does the resulting XML look like for comparison to what your I put is?
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    2. COIt looks like: <?xml version="1.0" encoding="UTF-8" standalone="yes"?><get_customer_request xmlns="http://example.org/tip/pro"/>
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    3. COYou get that if you marshal a fully populated object model?
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      1. USBlaise Doughan
 

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