RMI program runtime error

hi
iam trying to Design an RMI service emulating subset of Retailer Service of Supply Chain Management (SCM) architecture as described below:
The service will have single function of getting the catalog listing of available products at retailer. the method signature will be CatalogItem[] getCatlaog(String Product)
could someone help me in knowing the possible error in code ,iam getting the following error.i did bind server to rmi registry and when i try to run client ,this error occurs.
RetailerClient exception: error unmarshalling return; nested exception is:
java.lang.ClassNotFoundException: RetailerImpl_Stub (no security manager
: RMI class loader disabled)
java.rmi.UnmarshalException: error unmarshalling return; nested exception is:
java.lang.ClassNotFoundException: RetailerImpl_Stub (no security manager
: RMI class loader disabled)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at RetailerClient.main(RetailerClient.java:21)
Caused by: java.lang.ClassNotFoundException: RetailerImpl_Stub (no security mana
ger: RMI class loader disabled)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:371)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:631)
at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:257)
at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.jav
a:200)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:151
3)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1435)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1
626)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)
... 3 more
thanks
g1

Looks like client is trying to use some classes that the server does not have. So the server RMIClassLoader is trying to load it from the client. But you did not use any security manager in your application and RMIClassLoader doesn't like it. Call System.setSecurityManager(someManager) at the beginning at your application.
I got around without setting secutity manager like this:
In my application I have a URL classloader (from a HTTP server) at both the client and the server. So all classes client uses are available to server as well (but not the other way). Client is not allowed to define new classes other than the ones on the HTTP server.
hi
iam trying to Design an RMI service emulating
ing subset of Retailer Service of Supply Chain
Management (SCM) architecture as described below:
The service will have single function of getting the
catalog listing of available products at retailer. the
method signature will be CatalogItem[]
getCatlaog(String Product)
could someone help me in knowing the possible error in
code ,iam getting the following error.i did bind
server to rmi registry and when i try to run client
,this error occurs.
RetailerClient exception: error unmarshalling return;
nested exception is:
java.lang.ClassNotFoundException:
eption: RetailerImpl_Stub (no security manager
: RMI class loader disabled)
java.rmi.UnmarshalException: error unmarshalling
return; nested exception is:
java.lang.ClassNotFoundException:
eption: RetailerImpl_Stub (no security manager
: RMI class loader disabled)
at
at
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown
n Source)
at java.rmi.Naming.lookup(Naming.java:84)
at
at RetailerClient.main(RetailerClient.java:21)
Caused by: java.lang.ClassNotFoundException:
RetailerImpl_Stub (no security mana
ger: RMI class loader disabled)
at
at
at
t
sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.ja
a:371)
at
at
at
t
sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.ja
a:165)
at
at
at
t
java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoad
r.java:631)
at
at
at
t
java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader
java:257)
at
at
at
t
sun.rmi.server.MarshalInputStream.resolveClass(MarshalI
putStream.jav
a:200)
at
at
at
t
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputS
ream.java:151
3)
at
at
at
t
java.io.ObjectInputStream.readClassDesc(ObjectInputStre
m.java:1435)
at
at
at
t
java.io.ObjectInputStream.readOrdinaryObject(ObjectInpu
Stream.java:1
626)
at
at
at
t
java.io.ObjectInputStream.readObject0(ObjectInputStream
java:1274)
at
at
at
t
java.io.ObjectInputStream.readObject(ObjectInputStream.
ava:324)
... 3 more
thanks
g1

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