bytes limit on rpc calls

[Enrico Saviano]

Hello,

I'm using Avro RPC software to send messages, via 
SaslSocketServer/Transciever, and the Reflect method.

The problem I found is that I cannot send more than 49149 bytes on a 
single RPC call, 1 byte more and the software will lock.

Below, a class I wrote that replicates the issue.

Is it a bug, a limitation, or am I doing something wrong?

Thank you,
Enrico.


public class PoC {
        private final static InetSocketAddress addr =
                new InetSocketAddress("127.0.0.2", 12345);
        
        public interface ProtoInterface { int test(byte[] b); }
        
        public static void main (String[] args) {
                try {
                        SaslSocketServer s = new SaslSocketServer(
                                        new 
ReflectResponder(ProtoInterface.class, new ProtoInterface() {
                                                public int test(byte[] b) { 
return b.length; } }), addr);
                        s.start();
                        SaslSocketTransceiver client = new 
SaslSocketTransceiver(addr);
                        ProtoInterface proxy = (ProtoInterface) 
ReflectRequestor.getClient(
                                        ProtoInterface.class, client);

                        int res = proxy.test(new byte[49149]);
                        System.out.println("BYTE ARRAY LENGTH: "+res);
                        res = proxy.test(new byte[49150]);
                        System.out.println("NEVER REACH THIS POINT: "+res);
                        client.close();
                        
                        try { System.out.print("Shutting down server... "); 
s.notify();       }
                        catch (IllegalMonitorStateException e) { }      
                }
                catch (Exception e) { e.printStackTrace(); }
        }
}