UnsupportedOperationException in WadlGenerator.handleRequest
------------------------------------------------------------
Key: CXF-2726
URL: https://issues.apache.org/jira/browse/CXF-2726
Project: CXF
Issue Type: Bug
Components: JAX-RS
Affects Versions: 2.2.5
Environment: CXF 2.2.5
on Suse 10 (I think)
ora...@altweb01:~> uname -s
Linux
ora...@altweb01:~> uname -r
2.6.5-7.244-smp
ora...@altweb01:~> uname -i
x86_64
ora...@altweb01:~> uname -o
GNU/Linux
Reporter: Einar Valen
Priority: Minor
UnsupportedOperationException in WadlGenerator.handleRequest
Stack trace:
Caused by: java.lang.UnsupportedOperationException
at java.util.AbstractCollection.add(AbstractCollection.java:221)
at java.util.AbstractCollection.addAll(AbstractCollection.java:305)
at org.apache.cxf.jaxb.JAXBUtils.scanPackages(JAXBUtils.java:811)
at
org.apache.cxf.jaxrs.model.wadl.WadlGenerator.createJaxbContext(WadlGenerator.java:498)
at
org.apache.cxf.jaxrs.model.wadl.WadlGenerator.handleRequest(WadlGenerator.java:123)
at
org.apache.cxf.jaxrs.impl.RequestPreprocessor.checkMetadataRequest(RequestPreprocessor.java:164)
at
org.apache.cxf.jaxrs.impl.RequestPreprocessor.preprocess(RequestPreprocessor.java:74)
at
org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:87)
at
org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.handleMessage(JAXRSInInterceptor.java:63)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:236)
Looking at the sources reveals this:
org.apache.cxf.jaxrs.model.wadl.WadlGenerator.handleRequest(WadlGenerator.java:123)
public Response handleRequest(Message m, ClassResourceInfo
resource) {
...
Set<Class<?>> jaxbTypes =
ResourceUtils.getAllRequestResponseTypes(cris, true).keySet();
JAXBContext context = createJaxbContext(jaxbTypes);
...
}
at
org.apache.cxf.jaxrs.model.wadl.WadlGenerator.createJaxbContext(WadlGenerator.java:498)
private JAXBContext createJaxbContext(Set<Class<?>> classes) {
UnsupportedOperationException in WadlGenerator.handleRequest
...
JAXBUtils.scanPackages(classes, null);
...
}
at org.apache.cxf.jaxb.JAXBUtils.scanPackages(JAXBUtils.java:811)
public static void scanPackages(Set<Class<?>> classes,
Map<Package, CachedClass> objectFactoryCache) {
...
classes.addAll(objectFactories);
...
}
The classes variable passed to scanPackages appears to be immutable, and
eventually fails with an UnsupportedOperationException.
A quick suggestion to a fix:
Modify the line in WadlGenerator.handleRequest() that reads
Set<Class<?>> jaxbTypes = ResourceUtils.getAllRequestResponseTypes(cris,
true).keySet();
to
Set<Class<?>> jaxbTypes = new HashSet(
ResourceUtils.getAllRequestResponseTypes(cris, true).keySet() );
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