Hi, to me this looks like you deserialize with that ReflectionConverter and serialize without it ... this will not work. XStream must be setup in the same way for both operations.
- Jörg X wrote: > So I made the update and it seemed to work, I was able to bring up the > object. But with testing I noticed that all the objects that I > unmarshalled and then were updated and reserialized with xstream would > cause the following exception when I would try to unmarshall it again: > > > [exec] Caused by: > com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$UnknownFieldException: > No such field > com.sun.org.apache.xerces.internal.dom.AttributeMap.com.sun.org.apache.xerces.internal.dom.NamedNodeMapImpl > [exec] ---- Debugging information ---- [exec] field : > com.sun.org.apache.xerces.internal.dom.NamedNodeMapImpl [exec] class > : com.sun.org.apache.xerces.internal.dom.AttributeMap > [exec] required-type : > com.sun.org.apache.xerces.internal.dom.AttributeMap [exec] converter-type > : com.thoughtworks.xstream.converters.reflection.ReflectionConverter > [exec] path : > /xxx.xxx.SignedDocument/template/template/com.sun.org.apache.xerces.internal.dom.NodeImpl/default/ownerNode/com.sun.org.apache.xerces.internal.dom.ElementImpl/default/attributes/com.sun.org.apache.xerces.internal.dom.NamedNodeMapImpl > [exec] line number : 566 > [exec] class[1] : > com.sun.org.apache.xerces.internal.dom.ElementImpl > [exec] converter-type[1] : > com.thoughtworks.xstream.converters.reflection.SerializableConverter > [exec] class[2] : > xxx.xxx.MyTemplate > [exec] class[3] : xxx.xxx.SignedDocument > [exec] version : 1.4.7 > > Is there anything I can do about this? > > > > On Thursday, March 6, 2014 8:39 AM, X > <xh...@yahoo.com> wrote: Thank you sooo much > for your help! > > > > > On Thursday, March 6, 2014 4:04 AM, Jörg Schaible > <joerg.schai...@swisspost.com> wrote: Hi, > > X wrote: > >> I'm getting this exception: >> > [exec]Causedby:com.thoughtworks.xstream.converters.ConversionException:Cannotdeserialize >> [objectwithnewreadObject()/writeObject()methods >> [[exec]----Debugginginformation >> > [----[exec]class:com.sun.org.apache.xerces.internal.dom.AttributeMap[exec]required- > type >> [:com.sun.org.apache.xerces.internal.dom.AttributeMap[exec]converter-type >> > [:com.thoughtworks.xstream.converters.reflection.SerializableConverter[exec]path >> > [:/xxx.xxx.xxx.xxx.xxx.xxx.SignedDocument/template/template/com.sun.org.apache.xerces.internal.dom.NodeImpl/default/ownerNode/com.sun.org.apache.xerces.internal.dom.ElementImpl/default/attributes >> [[exec]line number >> > [:1183[exec]class[1]:com.sun.org.apache.xerces.internal.dom.ElementImpl[exec]class[2]:xxx.xxx.xxx.xxx.xxx.xxx.MyTemplate[exec]converter- > type[1]:com.thoughtworks.xstream.converters.r >> > eflection.ReflectionConverter[exec]class[3]:xxx.xxx.xxx.xxx.xxx.xxx.SignedDocument[exec]version >>:1.4.5[exec]------------------------------- >> >> I know that the problem is that the xml file was created under JDK 6 and >> since we've updated to JDK 7, the reflection-based converter broke. I >> did not write this code and have no experience with XStream though, so I >> am not sure how to create the custom converter. The xml I'm trying to >> unmarshal from is a mess. It's got an element named "template" of a >> certain class type that is a child of another element with the same >> "template" name but with a different class type. And within the >> inner-"template" element are all these sub-elements called >> com.sun.org.apache.xerces.internal.dom.NodeImpl, >> com.sun.org.apache.xerces.internal.dom.ChildNode, >> com.sun.org.apache.xerces.internal.dom.ParentNode, >> com.sun.org.apache.xerces.internal.dom.ElementImpl. I just don't even >> know where to start or what cl >>ass I'm supposed to try to create a custom converter for. > > This is really a nasty one. The problem is that the internal layout of the > AttributeMap has changed. Actually the change happened in the parent class > NamedNodeMapImpl. That one has now a method pair of readObject/writeObject > to mask the fact that it manages its nodes no longer in a Vector but an > arbitrary List implementation. The SerializableConverter detects this > situation and - because in those methods can happen "anything - it is no > longer able to deserialize. > > Since those methods were not present in Java 6 and AttributeMap and its > super classes were all Serializable and did lack such a method pair, the > generated XML does actually not differ from the one that would have been > produced by the ReflectionConverter itself. So in this special case you > can get away registering a ReflectionConverter for AttributeMap: > > ============== %< ================ > xstream.register( > new ReflectionConverter( > xstream.getMapper(), > xstream.getReflectionProvider(), > AttributeMap.class)); > ============== %< ================ > > The Java code and the XML will be compatible for both Java versions. > > However, in the long run, you should think about custom converters for all > those DOM types - or one for the root element of the DOM objects in your > classes (typically a Document) and write/recreate the XML structure using > the methods of XStream's reader/writer. > > Cheers, > Jörg > > > --------------------------------------------------------------------- > To unsubscribe from this list, please visit: > > http://xircles.codehaus.org/manage_email > > > --------------------------------------------------------------------- > To unsubscribe from this list, please visit: > > http://xircles.codehaus.org/manage_email > > --------------------------------------------------------------------- > To unsubscribe from this list, please visit: > > http://xircles.codehaus.org/manage_email --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email
