Thanks, Dan, for letting us know. Having said that, I'd really like to learn how you came about to realize that Tomcat is the problem, indeed.
Thanks Werner Smith, Daniel wrote: > I found the cause of my null pointer. It's actually caused by a bug in > the tomcat classloader: > http://issues.apache.org/bugzilla/show_bug.cgi?id=33743. One of the > threads gets a ClassNotFoundException trying to load one of my generated > descriptor classes in ClassDescriptorResolverImpl.resolve. It goes on to > use introspection, but something must be in an invalid state. > > > -Dan > > -----Original Message----- > From: Smith, Daniel > Sent: Monday, May 01, 2006 2:42 PM > To: '[email protected]' > Subject: Null pointer while unmarshalling xml to generated classes > > Hi, > > I'm getting a null pointer exception when unmarshalling xml to classes > generated from using the source generator. This exception only happens > if two threads are trying to unmarshal a document at the same time. One > of the threads will succeed and one will fail with this exception. As > far as I can tell it only happens the first time I try this after I > start the JVM. After the initial error everything works fine. I'm using > castor 1.0. > > I'm using the static Unmarshaller.unmarshal(Class, Node) method. > > Here's the stack trace: > java.lang.NullPointerException > at > org.exolab.castor.xml.UnmarshalHandler.endElement(UnmarshalHandler.java: > 757) > at > org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.jav > a:249) > at > org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.jav > a:182) > at > org.exolab.castor.xml.util.DOMEventProducer.processChildren(DOMEventProd > ucer.java:333) > at > org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.jav > a:247) > at > org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.jav > a:182) > at > org.exolab.castor.xml.util.DOMEventProducer.processChildren(DOMEventProd > ucer.java:333) > at > org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.jav > a:247) > at > org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.jav > a:182) > at > org.exolab.castor.xml.util.DOMEventProducer.processChildren(DOMEventProd > ucer.java:333) > at > org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.jav > a:247) > at > org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.jav > a:182) > at > org.exolab.castor.xml.util.DOMEventProducer.start(DOMEventProducer.java: > 110) > at > org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:584) > at > org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:735) > at > org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:848) > at > com.stargus.ws.DanTestWebServiceInput.processRequest(DanTestWebServiceIn > put.java:82) > at > com.stargus.ws.DanTestWebServiceInput.access$0(DanTestWebServiceInput.ja > va:75) > at > com.stargus.ws.DanTestWebServiceInput$1.run(DanTestWebServiceInput.java: > 55) > > > ------------------------------------------------- > If you wish to unsubscribe from this list, please > send an empty message to the following address: > > [EMAIL PROTECTED] > ------------------------------------------------- > > ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] -------------------------------------------------
