ClassCastException when trying to marshal a subclass of Date ------------------------------------------------------------ Key: JBWS-800 URL: http://jira.jboss.com/jira/browse/JBWS-800 Project: JBoss Web Services Issue Type: Bug Security Level: Public(Everyone can see) Components: jaxrpc Affects Versions: jbossws-1.0.0.CR4 Environment: Windows XP, JBoss 4.0.4.CR2 Reporter: Chris Baxter Assigned To: Alexey Loubyansky Fix For: jbossws-1.2.0 I have a EJB3 persistent bean mapped to a Sybase DB table. This table has datetime column that I have mapped back to a java.util.Date property on the persistent bean. This same bean class is returned from a webservice call. On JBoss 4.0.3SP1 (using Axis), I had no issues returning this object from my finder call. Now, when I switch to JBoss 4.0.4CR2 (using JBossWS), I get the following exception: Caused by: java.lang.ClassCastException: com.sybase.jdbc3.tds.SybTimestamp at org.jboss.xb.binding.SimpleTypeBindings.marshal(SimpleTypeBindings.java:1150) at org.jboss.xb.binding.XercesXsMarshaller.marshalCharacters(XercesXsMarshaller.java:1169) at org.jboss.xb.binding.XercesXsMarshaller.marshalSimpleType(XercesXsMarshaller.java:451) at org.jboss.xb.binding.XercesXsMarshaller.marshalElementType(XercesXsMarshaller.java:405) at org.jboss.xb.binding.XercesXsMarshaller.marshalElement(XercesXsMarshaller.java:380) at org.jboss.xb.binding.XercesXsMarshaller.marshalElementOccurence(XercesXsMarshaller.java:886) at org.jboss.xb.binding.XercesXsMarshaller.marshalParticle(XercesXsMarshaller.java:823) at org.jboss.xb.binding.XercesXsMarshaller.marshalModelGroupSequence(XercesXsMarshaller.java:1102) at org.jboss.xb.binding.XercesXsMarshaller.marshalModelGroup(XercesXsMarshaller.java:1057) at org.jboss.xb.binding.XercesXsMarshaller.marshalParticle(XercesXsMarshaller.java:729) at org.jboss.xb.binding.XercesXsMarshaller.marshalComplexType(XercesXsMarshaller.java:685) at org.jboss.xb.binding.XercesXsMarshaller.marshalElementType(XercesXsMarshaller.java:414) at org.jboss.xb.binding.XercesXsMarshaller.marshalElement(XercesXsMarshaller.java:380) at org.jboss.xb.binding.XercesXsMarshaller.marshalElementOccurence(XercesXsMarshaller.java:886) at org.jboss.xb.binding.XercesXsMarshaller.marshalParticle(XercesXsMarshaller.java:810) at org.jboss.xb.binding.XercesXsMarshaller.marshalModelGroupSequence(XercesXsMarshaller.java:1102) at org.jboss.xb.binding.XercesXsMarshaller.marshalModelGroup(XercesXsMarshaller.java:1057) at org.jboss.xb.binding.XercesXsMarshaller.marshalParticle(XercesXsMarshaller.java:729) at org.jboss.xb.binding.XercesXsMarshaller.marshalComplexType(XercesXsMarshaller.java:685) at org.jboss.xb.binding.XercesXsMarshaller.marshalElementType(XercesXsMarshaller.java:414) at org.jboss.xb.binding.XercesXsMarshaller.marshalElement(XercesXsMarshaller.java:380) at org.jboss.xb.binding.XercesXsMarshaller.marshalElementOccurence(XercesXsMarshaller.java:886) at org.jboss.xb.binding.XercesXsMarshaller.marshallInternal(XercesXsMarshaller.java:275) at org.jboss.xb.binding.XercesXsMarshaller.marshal(XercesXsMarshaller.java:222) at org.jboss.ws.jaxb.JAXBMarshallerImpl.marshal(JAXBMarshallerImpl.java:172) at org.jboss.ws.jaxrpc.encoding.JAXBSerializer.serialize(JAXBSerializer.java:100) at org.jboss.ws.soap.SOAPContentElement.getXMLFragment(SOAPContentElement.java:172) at org.jboss.ws.soap.SOAPContentElement.expandToDOM(SOAPContentElement.java:844) at org.jboss.ws.soap.SOAPContentElement.getChildNodes(SOAPContentElement.java:761) at org.jboss.util.xml.DOMWriter.printInternal(DOMWriter.java:201) at org.jboss.util.xml.DOMWriter.printInternal(DOMWriter.java:260) at org.jboss.util.xml.DOMWriter.printInternal(DOMWriter.java:260) at org.jboss.util.xml.DOMWriter.print(DOMWriter.java:177) at org.jboss.util.xml.DOMWriter.printNode(DOMWriter.java:126) at org.jboss.ws.server.ServiceEndpoint.postProcessResponse(ServiceEndpoint.java:306) ... 23 more In looking at the source code, I think I see why there may be a problem: else if(typeCode == XS_DATETIME) { Calendar c; if(value.getClass() == java.util.Date.class) { c = Calendar.getInstance(); c.clear(); c.setTime((java.util.Date)value); } else { c = (Calendar)value; } result = marshalDateTime(c); } The SybaseTimestamp class extends java.sql.Timestamp which in turn extends java.util.Date. That first 'if' should hit, but it won't because SybaseTimestamp.class != java.util.Date.class. Instead, I think the if statement should be: if(java.util.Date.class.isAssignableFrom(value.getClass())) I made this change and recompiled and everything works as expected now.