Marshalling elements with minOccurs=
Although JBoss respects the attribute nillable="true", it seems to ignore
minOccurs="0" when maxOccurs="1" (or is omited, which is the same). For
example, supose I have the folowing element defined in my XSD file:
<xsd:complexType name="CoordinationContextType"> <xsd:sequence> <xsd:element name="CoordinationType" type="xsd:string" minOccurs="0" /> </xsd:sequence> </xsd:complexType>
The Java counterpart:
public class CoordinationContextType {
private String coordinationType;
public CoordinationContextType() {
}
public CoordinationContextType(String coordinationType) {
this.coordinationType = coordinationType;
}
public String getCoordinationType() {
return coordinationType;
}
public void setCoordinationType(String type) {
coordinationType = type;
}
}
As the "CoordinationType" element has a minOccurs="0" attribute, it should be
possible to omit such element. So the following Java object instance is valid:
// ctx.coordinationType is null! CoordinationContextType ctx = new CoordinationContextType();
And should be marshalled as (the coordinationType element is omited):
<ns:CoordinationContextType />
But when this happens JBoss XB raises an exception:
va.rmi.RemoteException: Call invocation failed: Could not transmit message; nested exception is:
javax.xml.soap.SOAPException: Could not transmit message
at org.jboss.ws.jaxrpc.CallImpl.invokeInternal(CallImpl.java:661)
at org.jboss.ws.jaxrpc.CallImpl.invoke(CallImpl.java:399)
at org.jboss.ws.jaxrpc.CallProxy.invoke(CallProxy.java:115)
at $Proxy1.createCoordinationContext(Unknown Source)
at org.jboss.test.ws.jbwsxxx.UnitTestCase.testMinOccurs(UnitTestCase.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: javax.xml.soap.SOAPException: Could not transmit message
at org.jboss.ws.soap.SOAPConnectionImpl.call(SOAPConnectionImpl.java:138)
at org.jboss.ws.jaxrpc.CallImpl.invokeInternal(CallImpl.java:640)
... 19 more
Caused by: org.jboss.xb.binding.JBossXBRuntimeException: Failed to marshal {http://test.ws.jboss.org/fakewscoor}CoordinationType: Java value is null but the element is not nillable.
at org.jboss.xb.binding.XercesXsMarshaller.writeNillable(XercesXsMarshaller.java:1019)
at org.jboss.xb.binding.XercesXsMarshaller.marshalElement(XercesXsMarshaller.java:350)
at org.jboss.xb.binding.XercesXsMarshaller.marshalParticle(XercesXsMarshaller.java:707)
at org.jboss.xb.binding.XercesXsMarshaller.marshalModelGroupSequence(XercesXsMarshaller.java:883)
at org.jboss.xb.binding.XercesXsMarshaller.marshalModelGroup(XercesXsMarshaller.java:838)
at org.jboss.xb.binding.XercesXsMarshaller.marshalParticle(XercesXsMarshaller.java:662)
at org.jboss.xb.binding.XercesXsMarshaller.marshalComplexType(XercesXsMarshaller.java:623)
at org.jboss.xb.binding.XercesXsMarshaller.marshalElementType(XercesXsMarshaller.java:373)
at org.jboss.xb.binding.XercesXsMarshaller.marshalElement(XercesXsMarshaller.java:346)
at org.jboss.xb.binding.XercesXsMarshaller.marshallInternal(XercesXsMarshaller.java:249)
at org.jboss.xb.binding.XercesXsMarshaller.marshal(XercesXsMarshaller.java:196)
at org.jboss.ws.jaxb.JAXBMarshallerImpl.marshal(JAXBMarshallerImpl.java:157)
at org.jboss.ws.jaxrpc.encoding.JAXBSerializer.serialize(JAXBSerializer.java:99)
at org.jboss.ws.soap.SOAPContentElement.getXMLFragment(SOAPContentElement.java:167)
at org.jboss.ws.soap.SOAPContentElement.expandToDOM(SOAPContentElement.java:701)
at org.jboss.ws.soap.SOAPContentElement.getChildNodes(SOAPContentElement.java:618)
at org.jboss.util.xml.DOMWriter.printInternal(DOMWriter.java:166)
at org.jboss.util.xml.DOMWriter.printInternal(DOMWriter.java:225)
at org.jboss.util.xml.DOMWriter.printInternal(DOMWriter.java:225)
at org.jboss.util.xml.DOMWriter.print(DOMWriter.java:144)
at org.jboss.util.xml.DOMWriter.printNode(DOMWriter.java:93)
at org.jboss.ws.soap.SOAPConnectionImpl.call(SOAPConnectionImpl.java:120)
... 20 more
If an element that has minOccurs="0" in the XSD has a null value in the Java
counterpart, it should be omited from the generated SOAP message, shouldn't
it? It seems that JBoss XB just verifies if the element is nillable, and
ignores minOccurs="0".
May I open a Jira Issue for this?
