[jira] [Created] (CXF-5994) java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.reflect.TypeVariable

[Yannick Loth (JIRA)]

Yannick Loth created CXF-5994:
---------------------------------

             Summary:  java.lang.ClassCastException: 
sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to 
java.lang.reflect.TypeVariable
                 Key: CXF-5994
                 URL: https://issues.apache.org/jira/browse/CXF-5994
             Project: CXF
          Issue Type: Bug
          Components: JAXB Databinding
    Affects Versions: 2.7.11
         Environment: Wildfly 8.1.0.Final, JDK: 1.8.0_20-b26 64bit

            Reporter: Yannick Loth


 java.lang.ClassCastException: 
sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to 
java.lang.reflect.TypeVariable
        at 
org.apache.cxf.jaxb.JAXBContextInitializer.addType(JAXBContextInitializer.java:251)
 [cxf-rt-databinding-jaxb-2.7.11.jar:2.7.11]

Happens when the type is a GenericArrayType: then the code assumes that the 
component in the array type is either a class or a TypeVariable, and the cast 
into TypeVariable fails.
During debug sessions, I can see that the actual type is an array of a subtype 
of ParameterizedType, and obviously the code does not permit this.

The data types were generated with Maven and cxf-codegen-plugin.  The XSD is 
from Microsoft Exchange EWS (Exchange Web Service, 2006).  The problematic type 
is: com.microsoft.schemas.exchange.services._2006.messages.ResponseMessageType[]

This is blocking as any webservice which uses the data types of EWS fails if 
called with the standard JAXWS stack in Wildfly 8.1.0.Final.

For the fix: maybe copying lines 234 to 243 into line 250 may be almost enough 
(simply add an else-if for ParameterizedType arrays as above, but adapt a 
little for arrays):
 
else if (cls instanceof ParameterizedType) {
            final ParameterizedType parameterizedType = (ParameterizedType)cls;
            addType(parameterizedType.getRawType());
            if (!parameterizedType.getRawType().equals(Enum.class)) {
                for (Type t2 : parameterizedType.getActualTypeArguments()) {
                    if (shouldTypeBeAdded(t2, parameterizedType)) {
                        addType(t2);
                    }                }            }

Thanks



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