Failed to lookup JNDI provider

Question

Hi All,
I'm facing a problem sending Messages to a Queue within an OpenJMS server.
When I send the messages to a OpenJMS server runnin on my LocalHost, It is SUCCESSFUL.
then, I simply change the IP adress of the server (another machine on my local network) ... and here, I obtain the follwing exception :
Failed to lookup JNDI provider for URL: tcp://192.168.4.71:3035/
here is the code I'm using ( and where the exception is raised ):
Hashtable properties = new Hashtable();
properties.put(Context.INITIAL_CONTEXT_FACTORY, "org.exolab.jms.jndi.InitialContextFactory");
properties.put(Context.PROVIDER_URL, "tcp://192.168.4.71:3035/" );
context = new InitialContext(properties);Any help and suggestion please ?!
It's urgent

Answer 1

for more details :
this is the nested Exception I'm getting :
nested exception is:
java.io.InvalidClassException: org.exolab.jms.net.proxy.Proxy;
local class incompatible: stream classdesc serialVersionUID = -3335702252244367740, local class serialVersionUID = 1
?