EMC Smarts Java API - working with GA_StingDictionary class

Hello All.

I have problem to work with GA_StingDictionary class methods via invokeOperation from Java method.

Operations for class GA_StringDictionary:

    clone_name

    insert stringKey stringValue

    remove stringKey

    contains stringKey

    find stringKey

    dump

    clear

    get

    put data

If i try to get Instances or execute "get" method from SmRemoteDomainManager class is work perfect but when i try to execute invokeOperation method on class GA_StingDictionary  i get null exception.

And i cannot get Exception ) Just null return )

Anybody had this problem?

Code Example when i just try to run "dump" method.

public static void add2GA_String(SmRemoteDomainManager remoteDM,
                                        String IpAddr, String ga_string_class, String ga_string_name, List
     
       mgr_list)
     
            throws  IOException, SmRemoteException, Exception {
  
        String ErrMsg;
        MR_AnyVal[] paramList = new MR_AnyVal[1];
        paramList[0] = new MR_AnyValString(IpAddr);
        paramList[1] = new MR_AnyValString("bla");


        try {
  


            log.debug("Run add2GA_String function, IpAddr: " + IpAddr + " class = " + ga_string_class +  " name = " + ga_string_name + " mgr_list: " + mgr_list.toString());
            //remoteDM.invokeOperation(ga_string_class, ga_string_name, "dump", null);


            MR_AnyVal key  = remoteDM.get(ga_string_class, ga_string_name, "keys"); // works perfect


            remoteDM.invokeOperation(ga_string_class, ga_string_name, "insert", paramList);        // fails with 0. wtf with this EMC Java API?


        } catch (IOException ioe) {
  
            ErrMsg =   "IOException: Failed or interrupted I/O operation. " + ioe.getMessage();
            log.error(ErrMsg, ioe);
            throw  ioe;
        } catch (SmRemoteException sre) {
  
            ErrMsg =  "SmRemoteException: Exception in a remote InCharge Manager. " + sre.getMessage();
            log.error(ErrMsg, sre);
            throw sre;
        } catch (Exception e) {
  
            log.error(e.getMessage());
            throw e;
        }


    }

Just get next error with  0:)

2013-09-18 16:20:13 ERROR XSmartsHandler:182 - 0

2013-09-18 16:20:13 WARN  XSmartsServiceImpl:74 - 0