Hi all,
    I was trying to build a rmi service using tuscany.I implemented a 
UserService interface that extends a generic interface,please see more details 
from my mail attachment; 
   
   When I called normal method ,it worked well.But when I called  generic 
method,it throwed exception.
Here's the exception stacktrace,


java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:157)
at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:730)
at 
org.apache.tuscany.sca.core.assembly.RuntimeWireImpl.getInvocationChain(RuntimeWireImpl.java:144)
at 
org.apache.tuscany.sca.core.invocation.RuntimeWireInvoker.invoke(RuntimeWireInvoker.java:103)
at 
org.apache.tuscany.sca.core.invocation.RuntimeWireInvoker.invoke(RuntimeWireInvoker.java:98)
at 
org.apache.tuscany.sca.core.assembly.RuntimeWireImpl.invoke(RuntimeWireImpl.java:175)
at 
org.apache.tuscany.sca.binding.rmi.provider.RMIServiceBindingProvider.invokeTarget(RMIServiceBindingProvider.java:148)
at 
org.apache.tuscany.sca.binding.rmi.provider.RMIServiceBindingProvider$1.intercept(RMIServiceBindingProvider.java:110)
at 
$java.rmi.server.UnicastRemoteObject$$EnhancerByCGLIB$$17915681.insert(<generated>)
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:585)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466)
at 
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707)
at java.lang.Thread.run(Thread.java:595)
at 
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
at 
java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:179)
at 
java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132)

 …… ……  ……


Thanks !
2011-08-19 



fzhong 

Attachment: test-rmi-service.rar
Description: Binary data

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