The function is not registered for function id TopTenListFunction

Hi,

I am trying to get up and running function related sample.  Usually it works. But I need to ensure, function always executed strictly in the server. Hence I have two different JVM

1) Server VM

<cache>
    <cache-server port="40404" />
    <region name="exampleRegion">
        <region-attributes refid="REPLICATE">
        </region-attributes>
    </region>
    <function-service>
        <function>
            <class-name>testcache.TopTenListFunction</class-name>
        </function>
    </function-service>
</cache>

2)      System.out.println("Functions...\n" + Arrays.deepToString(FunctionService.getRegisteredFunctions().keySet().toArray())); - This line in server process confirms that there is function registered in the server with id "testcache.TopTenListFunction"

3) Trying to execute using client cache JVM

<client-cache>
    <pool name="client" subscription-enabled="true">
        <server host="localhost" port="40404" />
    </pool>

    <region name="exampleRegion">
        <region-attributes refid="PROXY">
        </region-attributes>
    </region>
</client-cache>

4)  Invoking function using..

     ClientCache clientCache = new ClientCacheFactory()
                .set("name", "ClientWorker")
                .set("cache-xml-file", "xml2/FunctionClient.xml").create();

     Execution execution = FunctionService.onServer(clientCache)         
                .withArgs(Boolean.TRUE)
                .withCollector(new MyArrayListResultCollector());
        ResultCollector rc = execution.execute("nikias.testcache.TopTenListFunction");

But what I get is exception like below..

Exception in thread "main" com.gemstone.gemfire.cache.client.ServerOperationException: The function is not registered for function id testcache.TopTenListFunction
    at com.gemstone.gemfire.cache.client.internal.AbstractOp.processObjResponse(AbstractOp.java:281)
    at com.gemstone.gemfire.cache.client.internal.GetFunctionAttributeOp$GetFunctionAttributeOpImpl.processResponse(GetFunctionAttributeOp.java:38)
    at com.gemstone.gemfire.cache.client.internal.AbstractOp.attemptReadResponse(AbstractOp.java:160)
    at com.gemstone.gemfire.cache.client.internal.AbstractOp.attempt(AbstractOp.java:361)
    at com.gemstone.gemfire.cache.client.internal.ConnectionImpl.execute(ConnectionImpl.java:233)
    at com.gemstone.gemfire.cache.client.internal.pooling.PooledConnection.execute(PooledConnection.java:323)
    at com.gemstone.gemfire.cache.client.internal.OpExecutorImpl.executeWithPossibleReAuthentication(OpExecutorImpl.java:894)
    at com.gemstone.gemfire.cache.client.internal.OpExecutorImpl.execute(OpExecutorImpl.java:145)
    at com.gemstone.gemfire.cache.client.internal.OpExecutorImpl.execute(OpExecutorImpl.java:106)
    at com.gemstone.gemfire.cache.client.internal.PoolImpl.execute(PoolImpl.java:623)
    at com.gemstone.gemfire.cache.client.internal.GetFunctionAttributeOp.execute(GetFunctionAttributeOp.java:19)
    at com.gemstone.gemfire.internal.cache.execute.ServerFunctionExecutor.execute(ServerFunctionExecutor.java:314)
    at nikias.testcache.FunctionClient.main(FunctionClient.java:88)

Q1) Is the below line is causing issue? I am passing clientCache instead of server reference? if so, How to pass the reference of the server?

     Execution execution = FunctionService.onServer(clientCache)         
                .withArgs(Boolean.TRUE)
                .withCollector(new MyArrayListResultCollector());
        ResultCollector rc = execution.execute("testcache.TopTenListFunction");

Q2) if server refid="REPLICATE", what could be my client-cache refid, so I could ensure, function executed on the server?

Q3) How to ensure function executed by CacheServer? i.e, Ensure executed by other  than the JVM which invokes the function?

Please note I have one eclipse project on windows, so I can't reduce visibility in the classpath scope

Regards