users@jaxb.java.net

Re: [2] ClassCastException on jaxbcontext.newInstance()

From: moraleslos <moraleslos_at_hotmail.com>
Date: Thu, 8 Mar 2007 09:18:51 -0800 (PST)

ok, i think i know what the problem is. One of my jaxb-fied objects is named
Detail.java. There happens to be an interface of the same name in jdk 6.
maybe when Jaxb2 is trying to create the context, it is confused and using
the JDK's version instead of mine, producing this CCE. Is this possible?
If so, is there a way to discriminate or namespace this in jaxb2 (using
annotations)? Thanks in advance!

-los



moraleslos wrote:
>
> In my simple main method produces the same error... any other ideas? I'm
> not sure how to go about debugging this.
>
> -los
>
>
> Dmitri Colebatch-2 wrote:
>>
>> What's your environment? Can you reproduce this in a simple main method?
>>
>> My guess would be that its something to do with classloaders - if you
>> have a class Foo loaded by one classloader, and then try to cast it to
>> Foo loaded by a different classloader, you will get a CCE....
>>
>> cheers
>> dim
>>
>> On 3/8/07, moraleslos <moraleslos_at_hotmail.com> wrote:
>>>
>>> I'm getting a weird CCE when I invoke the newInstance() on JAXBContext.
>>> The
>>> invocation is done in the constructor of my service class and looks like
>>> this:
>>> ----------------------
>>> jaxbContext = JAXBContext.newInstance(XmlRootClass.class);
>>> ---------------------
>>>
>>>
>>> Below is the error I'm getting:
>>> ----------------------------------
>>> Caused by: java.lang.ClassCastException:
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl$5
>>> cannot
>>> be cast to com.sun.xml.internal.bind.v2.model.impl.ClassInfoImpl
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ClassInfoImpl.getBaseClass(ClassInfoImpl.java:170)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeClassInfoImpl.getBaseClass(RuntimeClassInfoImpl.java:59)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeClassInfoImpl.getBaseClass(RuntimeClassInfoImpl.java:39)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:142)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:48)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:40)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:189)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.TypeRefImpl.calcRef(TypeRefImpl.java:56)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.TypeRefImpl.getTarget(TypeRefImpl.java:33)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeTypeRefImpl.getTarget(RuntimeTypeRefImpl.java:22)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeTypeRefImpl.getTarget(RuntimeTypeRefImpl.java:15)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ElementPropertyInfoImpl$1.get(ElementPropertyInfoImpl.java:38)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ElementPropertyInfoImpl$1.get(ElementPropertyInfoImpl.java:36)
>>> at java.util.AbstractList$Itr.next(AbstractList.java:345)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:139)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:48)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:40)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:189)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.TypeRefImpl.calcRef(TypeRefImpl.java:56)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.TypeRefImpl.getTarget(TypeRefImpl.java:33)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeTypeRefImpl.getTarget(RuntimeTypeRefImpl.java:22)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeTypeRefImpl.getTarget(RuntimeTypeRefImpl.java:15)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ElementPropertyInfoImpl$1.get(ElementPropertyInfoImpl.java:38)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ElementPropertyInfoImpl$1.get(ElementPropertyInfoImpl.java:36)
>>> at java.util.AbstractList$Itr.next(AbstractList.java:345)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:139)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:48)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:40)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:189)
>>> at
>>> com.sun.xml.internal.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:204)
>>> at
>>> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:356)
>>> at
>>> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:217)
>>> at
>>> com.sun.xml.internal.bind.v2.ContextFactory.createContext(ContextFactory.java:76)
>>> at
>>> com.sun.xml.internal.bind.v2.ContextFactory.createContext(ContextFactory.java:55)
>>> 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:597)
>>> at
>>> javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:210)
>>> at javax.xml.bind.ContextFinder.find(ContextFinder.java:381)
>>> at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574)
>>> at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:522)
>>> at
>>> com.test.music.BookDataConverter.<init>(BookDataConverter.java:53)
>>> ------------------------------------------------------
>>>
>>> Any ideas? Thanks in advance!
>>>
>>> -los
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