Program: 3886
Project: 3886
Buggy source:
@Override public <T>T createProxyWithReturnAddress(Class<T> serviceInterface,final String serviceName,String returnAddressArg,final EndPoint endPoint){
  final String objectAddress=endPoint != null ? Str.add(endPoint.address(),"String_Node_Str",serviceName) : "String_Node_Str";
  if (!Str.isEmpty(returnAddressArg)) {
    returnAddressArg=Str.add(objectAddress,"String_Node_Str" + UUID.randomUUID());
  }
  final String returnAddress=returnAddressArg;
  final ThreadLocal<CharBuf> addressCreatorBufRef=new ThreadLocal<CharBuf>(){
    @Override protected CharBuf initialValue(){
      return CharBuf.createCharBuf(255);
    }
  }
;
  InvocationHandler invocationHandler=new InvocationHandler(){
    long timestamp=Timer.timer().now();
    int times=10;
    @Override public Object invoke(    Object proxy,    Method method,    Object[] args) throws Throwable {
      long messageId=generatedMessageId++;
      if (method.getName().equals("String_Node_Str")) {
        endPoint.flush();
        return null;
      }
      times--;
      if (times == 0) {
        timestamp=Timer.timer().now();
        times=10;
      }
 else {
        timestamp++;
      }
      final CharBuf addressBuf=addressCreatorBufRef.get();
      addressBuf.recycle();
      addressBuf.add(objectAddress).add("String_Node_Str").add(method.getName());
      final String address=addressBuf.toString();
      final MethodCall<Object> call=factory.createMethodCallToBeEncodedAndSent(messageId,address,returnAddress,serviceName,method.getName(),timestamp,args,null);
      if (method.getName().equals("String_Node_Str")) {
        return "String_Node_Str";
      }
      endPoint.call(call);
      return null;
    }
  }
;
  final Object o=Proxy.newProxyInstance(serviceInterface.getClassLoader(),new Class[]{serviceInterface,ClientProxy.class},invocationHandler);
  return (T)o;
}

Fixed version (ground truth):
@Override public <T>T createProxyWithReturnAddress(final Class<T> serviceInterface,final String serviceName,final String host,final int port,String returnAddressArg,final EndPoint endPoint){
  final String objectAddress=endPoint != null ? Str.add(endPoint.address(),"String_Node_Str",serviceName) : "String_Node_Str";
  if (!Str.isEmpty(returnAddressArg)) {
    returnAddressArg=Str.add(objectAddress,"String_Node_Str" + UUID.randomUUID());
  }
  final String returnAddress=returnAddressArg;
  final ThreadLocal<CharBuf> addressCreatorBufRef=new ThreadLocal<CharBuf>(){
    @Override protected CharBuf initialValue(){
      return CharBuf.createCharBuf(255);
    }
  }
;
  InvocationHandler invocationHandler=new InvocationHandler(){
    long timestamp=Timer.timer().now();
    int times=10;
    @Override public Object invoke(    Object proxy,    Method method,    Object[] args) throws Throwable {
      long messageId=generatedMessageId++;
      if (method.getName().equals("String_Node_Str")) {
        endPoint.flush();
        return null;
      }
      times--;
      if (times == 0) {
        timestamp=Timer.timer().now();
        times=10;
      }
 else {
        timestamp++;
      }
      final CharBuf addressBuf=addressCreatorBufRef.get();
      addressBuf.recycle();
      addressBuf.add(objectAddress).add("String_Node_Str").add(method.getName());
      final String address=addressBuf.toString();
      final MethodCall<Object> call=factory.createMethodCallToBeEncodedAndSent(messageId,address,returnAddress,serviceName,method.getName(),timestamp,args,null);
switch (method.getName()) {
case "String_Node_Str":
        return port;
case "String_Node_Str":
      return host;
case "String_Node_Str":
    return port == 0 ? sputs("String_Node_Str",serviceName,"String_Node_Str") : sputs("String_Node_Str",serviceName,host,port,"String_Node_Str");
default :
  endPoint.call(call);
}
return null;
}
}
;
if (port == 0) {
return (T)Proxy.newProxyInstance(serviceInterface.getClassLoader(),new Class[]{serviceInterface,ClientProxy.class},invocationHandler);
}
 else {
return (T)Proxy.newProxyInstance(serviceInterface.getClassLoader(),new Class[]{serviceInterface,RemoteTCPClientProxy.class},invocationHandler);
}
}