Aegis Databinding cannot handle wildcard as a Map value type (ex: Map<String,
?>)
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Key: CXF-1587
URL: https://issues.apache.org/jira/browse/CXF-1587
Project: CXF
Issue Type: Bug
Components: Aegis Databinding
Affects Versions: 2.1
Environment: Java 1.5.0_10; Windows
Reporter: Brian Gadwell
If an interface conatins a method which takes a param of type Map<String, ?> or
returns a Map<String, ?> the following exception occurs with the following code:
ServerFactoryBean svrFactory = new ServerFactoryBean();
svrFactory.setServiceClass(Tester.class);
svrFactory.setAddress("http://localhost:9090/cxfbug";);
svrFactory.setServiceBean(new TesterImpl());
svrFactory.getServiceFactory().setDataBinding(new AegisDatabinding());
svrFactory.create();
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
at
org.apache.cxf.aegis.type.java5.Java5TypeCreator.getComponentType(Java5TypeCreator.java:184)
at
org.apache.cxf.aegis.type.java5.Java5TypeCreator.getOrCreateParameterizedType(Java5TypeCreator.java:134)
at
org.apache.cxf.aegis.type.java5.Java5TypeCreator.getOrCreateMapValueType(Java5TypeCreator.java:130)
at
org.apache.cxf.aegis.type.AbstractTypeCreator.getOrCreateMapValueType(AbstractTypeCreator.java:254)
at
org.apache.cxf.aegis.type.XMLTypeCreator.getOrCreateMapValueType(XMLTypeCreator.java:514)
at
org.apache.cxf.aegis.type.AbstractTypeCreator.createMapType(AbstractTypeCreator.java:268)
at
org.apache.cxf.aegis.type.AbstractTypeCreator.createTypeForClass(AbstractTypeCreator.java:111)
at
org.apache.cxf.aegis.databinding.AegisDatabinding.getParameterType(AegisDatabinding.java:593)
at
org.apache.cxf.aegis.databinding.AegisDatabinding.initializeMessage(AegisDatabinding.java:375)
at
org.apache.cxf.aegis.databinding.AegisDatabinding.initializeOperation(AegisDatabinding.java:339)
at
org.apache.cxf.aegis.databinding.AegisDatabinding.initialize(AegisDatabinding.java:303)
at
org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:343)
at
org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:394)
at
org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:180)
at
org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:79)
at
org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:114)
If you do not use the Aegis Databinding then the code works as expected.
The problem seems to stem from the
org.apache.cxf.aegis.type.java5.Java5TypeCrestor class in the following method:
protected Class getComponentType(Object genericType, int index) {
Class paramClass = null;
if (genericType instanceof ParameterizedType) {
ParameterizedType type = (ParameterizedType)genericType;
if (type.getActualTypeArguments()[index] instanceof Class) {
paramClass = (Class)type.getActualTypeArguments()[index];
} else if (type.getActualTypeArguments()[index] instanceof
WildcardType) {
WildcardType wildcardType =
(WildcardType)type.getActualTypeArguments()[index];
if (wildcardType.getUpperBounds()[index] instanceof Class) {
paramClass = (Class)wildcardType.getUpperBounds()[index];
}
} else if (type.getActualTypeArguments()[index] instanceof
ParameterizedType) {
ParameterizedType ptype =
(ParameterizedType)type.getActualTypeArguments()[index];
paramClass = (Class)ptype.getRawType();
}
}
return paramClass;
}
I found if I change
if (wildcardType.getUpperBounds()[index] instanceof Class) {
paramClass = (Class)wildcardType.getUpperBounds()[index];
}
to
if (wildcardType.getUpperBounds()[0] instanceof Class) {
paramClass = (Class)wildcardType.getUpperBounds()[0];
}
it works in my case but not at all sure if this is the correct fix or if this
should be expected to be supported.
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